Adjustable lift chair frame

Patent metadata

Field	Value
Publication number	US-10925787-B2
Application number	US-202016858775-A
Country	US
Kind code	B2
Filing date	Apr 27, 2020
Priority date	Aug 21, 2018
Publication date	Feb 23, 2021
Grant date	Feb 23, 2021

Abstract

A lift chair frame is disclosed having an adjustable seat including a front support bar assembly including a left member and a right member connected to the left member, a rear support bar assembly opposite the front support bar assembly along a longitudinal direction, a left support bar connected to the front and rear support bar assemblies, and a right support bar opposite the left support bar along a lateral direction that is perpendicular to the longitudinal direction and connected to the front and rear support bar assemblies. The lift chair frame also includes an adjustable back coupled to the adjustable seat, where each of the left and right members includes a plurality of alignment features positioned in predetermined locations that correspond to predetermined adjustable seat widths, such that during assembly one of the predetermined adjustable seat widths can be achieved by 1) aligning one of the alignment features of the left member with one of the alignment features of the right member, and 2) securing the left member to the right member.

First claim

What is claimed is:

1. An apparatus, comprising:
an adjustable seat including a front support bar assembly including a left member and a right member connected to the left member, a rear support bar assembly opposite the front support bar assembly along a longitudinal direction, a left support bar connected to the front and rear support bar assemblies, and a right support bar opposite the left support bar along a lateral direction that is perpendicular to the longitudinal direction and connected to the front and rear support bar assemblies; and
a back coupled to the adjustable seat,
wherein each of the left and right members includes a plurality of alignment features positioned in predetermined locations that correspond to predetermined adjustable seat widths, such that during assembly one of the predetermined adjustable seat widths is achieved when one of the alignment features of the left member is aligned with one of the alignment features of the right member, and the left member is secured to the right member.

2. The apparatus of claim 1 , wherein the rear support bar assembly comprises a left member connected to the left support bar and a right member connected to the right support bar, wherein each of the left and right members of the rear support bar assembly includes a plurality of alignment features positioned in predetermined locations that correspond to the predetermined adjustable seat widths, such that during assembly one of the predetermined adjustable seat widths is further achieved when one of the alignment features of the left member of the rear support bar assembly is aligned with one of the alignment features of the right member of the rear support bar assembly, and the left member of the rear support bar assembly is secured to the right member of the rear support bar assembly.

3. The apparatus of claim 2 , wherein the plurality of alignment features of the front and rear support bar assemblies comprise a plurality of alignment bores configured to receive fasteners for securing the respective left and right members together.

4. The apparatus of claim 1 , wherein the left support bar has an inner side, an outer side opposite the inner side, and a thickness measured from the inner side to the outer side along the lateral direction, the thickness being from about 0.8 mm to about 1.2 mm.

5. The apparatus of claim 4 , wherein the thickness of the left support bar is about 0.8 mm.

6. The apparatus of claim 4 , wherein the thickness of the left support bar is about 1.2 mm.

7. The apparatus of claim 1 , wherein the back comprises an adjustable back that includes a top support bar assembly, a bottom support bar assembly opposite the top support bar assembly along a vertical direction that is perpendicular to the lateral and longitudinal directions, a left support bar connected to the top and bottom support bar assemblies, and a right support bar opposite the left support bar along the lateral direction and connected to the top and bottom support bar assemblies,
wherein the adjustable back has a first width measured from the left support bar to the right support bar along the lateral direction and a first height measured from the top support bar assembly to the bottom support bar assembly along the vertical direction.

8. The apparatus of claim 7 , wherein the adjustable back includes an upper wing releasably attachable to the top support bar assembly, such that the adjustable back has a second height measured from the upper wing to the bottom support bar assembly along the vertical direction that is greater than the first height when the upper wing is attached to the top support bar assembly.

9. The apparatus of claim 7 , wherein the adjustable back includes a left wing releasably attachable to the left support bar and a right wing releasably attachable to the right support bar, such that the adjustable back has a second width measured from the left wing to the right wing along the lateral direction that is greater than the first width when the left wing is attached to the left support bar and the right wing is attached to the right support bar.

10. The apparatus of claim 7 , wherein the adjustable back includes a left wing releasably attachable to the left support bar and a right wing releasably attachable to the right support bar, such that the adjustable back has a second width measured from the left wing to the right wing along the lateral direction that is greater than the first width when the left wing is attached to the left support bar and the right wing is attached to the right support bar,
wherein the adjustable back further includes an upper wing releasably attachable to the left and right wings, such that the adjustable back has a second height measured from the upper wing to the bottom support bar assembly along the vertical direction that is greater than the first height when the upper wing is attached to the left and right wings.

11. The apparatus of claim 1 , wherein the apparatus is comprised of metal.

12. The apparatus of claim 11 , wherein the metal is a steel.

13. An apparatus, comprising:
an adjustable back comprising a top support bar assembly, a bottom support bar assembly opposite the top support bar assembly along a vertical direction, a left support bar connected to the top and bottom support bar assemblies, and a right support bar opposite the left support bar along a lateral direction that is perpendicular to the vertical direction and connected to the top and bottom support bar assemblies, wherein the adjustable back has a first width measured from the left support bar to the right support bar along the lateral direction and a first height measured from the top support bar assembly to the bottom support bar assembly along the vertical direction;
a seat coupled to the adjustable back;
a chair shell coupled to the seat;
a left wing releasably attachable to the left support bar of the adjustable back; and
a right wing releasably attachable to the right support bar of the adjustable back,
wherein the adjustable back has a second width measured from the left wing to the right wing along the lateral direction when the left wing is attached to the left support bar and the right wing is attached to the right support bar, the second width being greater than the first width.

14. The apparatus of claim 13 , wherein the adjustable back further includes an upper wing releasably attachable to the left and right wings, such that the adjustable back has a second height measured from the upper wing to the bottom support bar assembly along the vertical direction that is greater than the first height when the upper wing is attached to the left and right wings.

15. The apparatus of claim 13 , wherein the chair shell comprises an adjustable chair shell that includes a left portion, a right portion opposite the left portion along the lateral direction, and a rear portion that attaches the left portion to the right portion, wherein the adjustable seat is attached to an inner side of the left portion and an inner side of the right portion.

16. The apparatus of claim 15 , wherein the rear portion includes a left member and a right member connected to the left member, each of the left and right members including a plurality of alignment features positioned in predetermined locations that correspond to predetermined adjustable chair shell widths, such that during assembly one of the predetermined adjustable chair shell widths is achieved when one of the alignment features of the left member is aligned with one of the alignment features of the right member, and the left member is secured to

Assignees

• Pride Mobility Products Corp

Inventors

• O'Leary Robert
• Burke David
• Warren Richard
• Hamby Kris
• Zablocky Mike

Classifications

• A61G2200/34

  sitting · CPC title

• A61G5/14 Primary

  Standing-up or sitting-down aids · CPC title

• A47C15/004

  Seating furniture for specified purposes not covered by main groups A47C1/00 or A47C9/00 · CPC title