초록 ▼

A chair riser assembly supports a chair in an elevated position relative to a primary support surface for providing the chair user with a slightly raised seat elevation for aiding the chair user in rising from the riser-supported chair. The chair riser assembly includes a series of corner post assem

A chair riser assembly supports a chair in an elevated position relative to a primary support surface for providing the chair user with a slightly raised seat elevation for aiding the chair user in rising from the riser-supported chair. The chair riser assembly includes a series of corner post assemblies each of which have a lower post end for engaging the primary support surface. Two width adjustment assemblies adjustably interconnect paired, laterally spaced the post assemblies for enabling the user to adjust the lateral width of the riser assembly for accommodating variously sized chairs. Laterally opposed chair support assemblies interconnect forward portions of the chair riser assembly to rearward portions of the chair riser assembly. Each chair support assembly includes a chair support portion in superior adjacency to the lower post ends for supporting lower portions of the chair in superior adjacency to the primary support surface.

대표청구항 ▼

1. A chair riser assembly for supporting a chair in an elevated position relative to a primary support surface, the chair riser assembly comprising: four corner post assemblies, the four corner post assemblies comprising a left anterior post assembly, a right anterior post assembly, a left posterior

1. A chair riser assembly for supporting a chair in an elevated position relative to a primary support surface, the chair riser assembly comprising: four corner post assemblies, the four corner post assemblies comprising a left anterior post assembly, a right anterior post assembly, a left posterior post assembly and a right posterior post assembly, each post assembly comprising a lower post end for engaging the primary support surface;two width adjustment assemblies, the two width adjustment assemblies comprising an anterior width adjustment assembly and a posterior width adjustment assembly, the anterior width adjustment assembly adjustably interconnecting the left and right anterior post assemblies, the posterior width adjustment assembly adjustably interconnecting the left and right posterior post assemblies;the anterior and posterior width adjustment assemblies each comprise a left and a right lateral rail, the left and right lateral rails each extending medially and being cooperable at a rail overlap zone for enabling a user to adjust a lateral width of the chair riser assembly;the left and right lateral rails each being slotted;a screw clamp mechanism cooperable with the anterior and posterior width adjustment assemblies, the screw clamp mechanism fitting within the slots of the left and right lateral rails enabling the user to selectively clamp the left lateral rails into engagement with the right lateral rails and capable of selectively fixing the lateral width of the chair riser assembly; andtwo chair support assemblies, each of the two chair support assemblies being a continuous unitary structure of one-piece construction, the two chair support assemblies comprising a left lateral support assembly and a right lateral support assembly, the left lateral support assembly interconnecting the left anterior and posterior post assemblies, the right lateral support assembly interconnecting the right anterior and posterior post assemblies, the left and right lateral support assemblies each comprising a chair support portion in superior adjacency to the lower post ends for supporting lower leg portions of the chair in superior adjacency to the primary support surface. 2. The chair riser assembly of claim 1 wherein the anterior and posterior width adjustment assemblies are independently adjustable. 3. The chair riser assembly of claim 1 wherein the screw clamp mechanism comprises a knob portion and a screw-anchor portion. 4. The chair riser assembly of claim 3 wherein the left and right lateral rails each have guide flanges on terminal ends thereof; the guide flanges of the left lateral rail mateable to top and bottom portions of the right lateral rail and the guide flanges of the right lateral rail mateable to top and bottom portions of the left lateral rail. 5. The chair riser assembly of claim 1 comprising leg stop means for preventing movement of the lower leg portions. 6. The chair riser assembly of claim 5 wherein the leg stop means are defined by at least one screw block construction, the screw block construction being selectively affixed to the chair support portions via a screw mechanism. 7. The chair riser assembly of claim 1 comprising leg retention means for preventing movement of the lower leg portions. 8. The chair riser assembly of claim 7 wherein the left and right chair support assemblies each comprise an upper support portion orthogonal to the chair support portion, and the leg retention means are defined by at least one pivot pin assembly, the at least one pivot pin assembly being cooperable with at least one aperture formed in at least one upper support portion for enabling the user to selectively prevent the lower leg portion from moving in an upward direction. 9. The chair riser assembly of claim 1 comprising dive stop means for preventing the supported chair from diving forward during use. 10. The chair riser assembly of claim 9 wherein the dive stop means are cooperably associated with a select post assembly, the select post assembly being selected from the group consisting of the left anterior post assembly and the right anterior post assembly. 11. The chair riser assembly of claim 10 wherein the dive stop means comprises an L-shaped compression member, the L-shaped compression member being fastened to the select post assembly and comprising an extension portion and a chair-engagement portion, the chair-engagement portion extending orthogonally relative the extension portion for engaging a chair bottom, the L-shaped compression member thus for preventing downward movement of the chair bottom. 12. The chair riser assembly of claim 1 wherein the four post assemblies each comprise post length adjustment means for enabling the user to selectively adjust a vertical height of each post assembly and thus the chair riser assembly; wherein the four post assemblies are hollow for receiving the post length adjustment means, the post length adjustment means defined by apertured telescopic leg portions and snap button means for selectively locking the apertured telescopic leg portions at a select telescopic position relative to one another. 13. The chair riser assembly of claim 12 wherein the apertured telescopic leg portions are rectangular when viewed along a vertical axis of the four post assemblies. 14. A chair riser assembly for supporting a chair in an elevated position relative to a primary support surface, the chair riser assembly comprising: four corner post assemblies, the four corner post assemblies comprising first and second pairs of laterally spaced corner post assemblies, each corner post assembly comprising a lower post end for engaging the primary support surface;wherein each corner post assembly comprises a hollow post cooperatively connected to a telescoping insert;first and second width adjustment assemblies, the first width adjustment assembly adjustably interconnecting the first pair of laterally spaced corner post assemblies, the second width adjustment assembly adjustably interconnecting the second pair of laterally spaced corner post assemblies;the first and second width adjustment assemblies each comprise a left and a right lateral rail, the left and right lateral rails each extending medially and being cooperable at a rail overlap zone for enabling a user to adjust a lateral width of the chair riser assembly;the left and right lateral rails each being slotted;a screw clamp mechanism cooperable with the first and second width adjustment assemblies, the screw clamp mechanism fitting within the slots of the left and right lateral rails enabling the user to selectively clamp the left lateral rails into engagement with the right lateral rails and capable of selectively fixing the lateral width of the chair riser assembly; andlaterally opposed chair support assemblies, the laterally opposed chair support assemblies interconnecting the first width adjustment assembly and first pair of laterally spaced corner post assemblies to the second width adjustment assembly and second pair of laterally spaced corner post assemblies, the laterally opposed chair support assemblies each comprising a chair support portion in superior adjacency to the lower post ends for supporting lower leg portions of the chair in superior adjacency to the primary support surface. 15. The chair riser assembly of claim 14 wherein the left and right lateral rails each have guide flanges on terminal ends thereof; the guide flanges of the left lateral rail mateable to top and bottom portions of the right lateral rail and the guide flanges of the right lateral rail mateable to top and bottom portions of the left lateral rail. 16. The chair riser assembly of claim 14 comprising chair movement prevention means for preventing movement of the chair relative to the chair riser assembly; the chair movement prevention means comprising a compression member, the compression member being fastened to the chair riser assembly and comprising an extension portion and a chair-engagement portion, the chair-engagement for engaging a chair bottom, the compression member thus for preventing downward movement of the chair bottom. 17. The chair riser assembly of claim 14 wherein the telescoping inserts having a pushpin portion and each said corner post having cooperable hole portions allowing the user to selectively adjust a vertical height of each post assembly and thus the chair riser assembly.