An articulating bed frame includes a main frame; a back section; first and second linkage assemblies, each being pivotally connected at spaced apart first and third ends to the back section and pivotally connected at opposing, spaced apart and respective second and fourth ends to the main frame; an
An articulating bed frame includes a main frame; a back section; first and second linkage assemblies, each being pivotally connected at spaced apart first and third ends to the back section and pivotally connected at opposing, spaced apart and respective second and fourth ends to the main frame; an upper leg section; a third linkage assembly pivotally connected at opposing fifth and sixth ends to the upper leg section and the main frame; a support link assembly connecting the upper leg section for sliding and pivotal movement with the main frame; a seat section pivotally connected at opposing ends to the back section and the upper leg section; a lower leg section pivotally connected to the upper leg section and freely supported atop a forward end of the main frame; a drive assembly connected between the back section and the third linkage assembly and operable to extend and retract to articulate the bed frame between a fully reclined position and a fully inclined position; and, a side rail assembly connected to the main frame and including a handle having a down position and an up position and including connection apparatus for permitting articulation between the down and up positions.
대표청구항▼
What is claimed is: 1. An articulating side rail assembly for a bed having a bed frame with a horizontal position, comprising: a mounting bracket connectable to said bed frame; a handle assembly; first and second linkage arms each having first and second ends and each being pivotally connected at t
What is claimed is: 1. An articulating side rail assembly for a bed having a bed frame with a horizontal position, comprising: a mounting bracket connectable to said bed frame; a handle assembly; first and second linkage arms each having first and second ends and each being pivotally connected at their first ends at first and second pivot axes to said mounting bracket and at their second ends at third and fourth pivot axes to said handle assembly to permit said side rail assembly to articulate generally in a common plane between a down position and an up position, and wherein a is the distance between first and third pivot axes, b is the distance between second and fourth pivot axes, c is the distance between first and second pivot axes, and d is the distance between third and fourth pivot axes, and wherein in the down position, said handle assembly is entirely lateral of the first and second pivot axes; and, a position control assembly connected with at least one of said handle assembly and said first and second linkage arms for releasably locking said side rail assembly in at least one of the down and up positions. 2. The articulating side rail assembly for a bed of claim 1 wherein said handle assembly comprises at least one connector bracket and a handle. 3. The articulating side rail assembly for a bed of claim 2 wherein said handle is generally C-shaped having opposing ends that are connected to the at least one connector bracket. 4. The articulating side rail assembly for a bed of claim 2 wherein said handle assembly includes a friction grip slidably received on the handle. 5. The articulating side rail assembly for a bed of claim 2 wherein said handle is generally C-shaped having angled, top, front and bottom sections, the angled and bottom sections being connected to the at least one connector bracket. 6. The articulating side rail assembly for connection to a bed of claim 2 wherein there are two connector brackets and the second ends of said first and second linkage arms are pivotally connected to and between the two connector brackets. 7. The articulating side rail assembly for a bed of claim 6 wherein said handle is generally C-shaped having angled, top, front and bottom sections, the angled and bottom sections being connected to and between the two connector brackets. 8. The articulating side rail assembly for a bed of claim 7 further including a control unit connected to and extending upwardly from the bottom section. 9. The articulating side rail assembly for a bed of claim 1 wherein the first and second pivot axes are spaced apart and along a line that is between about 40째 and 50째 to horizontal. 10. The articulating side rail assembly for a bed of claim 9 wherein said mounting bracket includes a pivot stop engageable with one of said linkage arms to preclude articulation of said side rail assembly beyond one of the up and down positions. 11. The articulating side rail assembly for a bed of claim 1 wherein said position control assembly is connected between said handle assembly and said first linkage arm. 12. The articulating side rail assembly for a bed of claim 1 wherein a=b and c=d. 13. The articulating side rail assembly for a bed of claim 1 wherein a≠b. 14. The articulating side rail assembly for a bed of claim 1 wherein c≠d. 15. The articulating side rail assembly for a bed of claim 1 wherein both a and b are between about 2 and 3 times both c and d. 16. The articulating side rail assembly for a bed of claim 15 wherein both a and b are between about 2.5 and 2.7 times both c and d. 17. An articulating side rail assembly for a bed having a bed frame with a horizontal position, comprising: a mounting bracket connectable to a bed frame; a handle assembly; first and second linkage arms each having first and second ends and each being pivotally connected at their first ends at first and second pivot axes to said mounting bracket and at their second ends at third and fourth pivot axes to said handle assembly to permit said side rail assembly to articulate between a down position and an up position, and wherein a is the distance between first and third pivot axes, b is the distance between second and fourth pivot axes, c is the distance between first and second pivot axes, and d is the distance between third and fourth pivot axes, and wherein in the down position, said handle assembly is entirely lateral of the first and second pivot axes; a position control assembly connected with at least one of said handle assembly and said first and second linkage arms for releasably locking said side rail assembly in at least one of the down and up positions; and, wherein said position control assembly includes a guide arm connected to said first linkage arm and includes a set link connected at a first end to said handle assembly and variably connected at a second end to the guide arm. 18. The articulating side rail assembly for a bed of claim 17 wherein the set link is pivotally connected at its first end to said handle assembly. 19. The articulating side rail assembly for a bed of claim 17 wherein the set link defines a slot and the guide arm has a pin disposed to follow within the slot of the set link, the shape of the slot defining releasable locking positions that include the down and up position. 20. The articulating side rail assembly for a bed of claim 19 wherein the slot of the set link defines at least one notch for defining one of the releasable locking positions. 21. The articulating side rail assembly for a bed of claim 19 wherein the slot of the set link defines at least one intermediate position between the down and up position. 22. A method for articulating a side rail assembly for a bed, the bed having a bed frame with a horizontal position, comprising: providing an articulating side rail assembly that includes: a mounting bracket connectable to said bed frame, a handle assembly, first and second linkage arms each having first and second ends and each being pivotally connected at their first ends at first and second pivot axes to said mounting bracket and at their second ends at third and fourth pivot axes to said handle assembly to permit said side rail assembly to articulate generally in a common plane between a down position and an up position, and wherein a is the distance between first and third pivot axes, b is the distance between second and fourth pivot axes, c is the distance between first and second pivot axes, and d is the distance between third and fourth pivot axes, and wherein in the down position, said handle assembly is entirely lateral of the first and second pivot axes, and a position control assembly connected with at least one of said handle assembly and said first and second linkage arms for releasably locking said side rail assembly in at least one of the down and up positions; mounting said side rail assembly to a bed by connecting the said mounting bracket to the bed frame; moving said handle assembly as said first and second linkage arms pivot about the first and second pivot axes until said position control assembly releasably locks said side rail assembly in one of the down and up positions. 23. The method for articulating a side rail assembly for a bed of claim 22 wherein said providing step includes the articulating side rail assembly having at least one alternative position different from the down and up positions and the position control assembly being operable to releasably lock the side rail assembly in any of the down, up and alternative positions.
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