Powered furniture

• US 7,699,389 B2
• Filed: 12/18/2008
• Issued: 04/20/2010
• Est. Priority Date: 10/30/2003
• Status: Active Grant

• Current Assignee: DewertOkin Technology Group Co., Ltd.
• Original Assignee: Roboco Design Limited
• Inventors: Robertson, Dale
• Primary Examiner(s): Brown; Peter R.
• Application Number:
  US12/338,790
• Publication Number:
  US 20090096255A1
• Time in Patent Office: 488 Days
• Field of Search: 297/69, 297 83- 86, 297/330, 297/331, 297/335, 297/452.38, 297/DIG.10
• US Class Current: 297/85.00M
• CPC Class Codes: A47C 1/0242 by electric motors
• CPC Class Codes: A47C 7/506 of adjustable type
• CPC Class Codes: A61G 5/14 Standing-up or sitting-down aids
• CPC Class Codes: Y10S 297/10 Occupant-arising assist

Abstract

A lift-recliner chair includes a base portion, a seat portion pivotally connected to the base portion, and a back portion pivotally connected to the seat portion. The chair further includes an actuator assembly for altering the configuration of the chair including a first actuator for moving the seat portion with respect to the base portion and second actuator for moving the back portion with respect to the seat portion. The actuator assembly is substantially enclosed on an underside of the chair, the first actuator is fixed in relation to the base portion, and the second actuator is fixed in relation to the seat portion.

Claims

1. A lift-recliner chair for assisting movement of a user between a seated position and a standing position comprising:

a base portion;

a seat portion pivotally connected to the base portion;

a back portion pivotally connected to the seat portion; and

an actuator assembly substantially enclosed on an underside of the chair for altering the configuration of the chair including;

a first actuator operably coupled to the base portion and the seat portion, the first actuator tilting the seat portion forward with respect to the base portion from a lowered position, in which the seat portion supports the user seated in the chair, to a fully raised position assisting movement of the user out of the chair, and

a second actuator operably coupled to the seat portion and the back portion, the second actuator for moving the back portion with respect to the seat portion, the second actuator increasing an angle between the back portion and the seat portion prior to or during movement of the seat portion toward the fully raised position to facilitate movement of the user out of the chair.

2. A lift-recliner chair as claimed in claims 1 wherein the base portion comprises a pair of substantially vertical side panels and a rear panel extending between the side panels, and the seat portion comprises a seat frame including a pair of substantially vertical side panels arranged substantially parallel with and adjacent to the respective side panels of the base portion.

3. A lift-recliner chair as claimed in claim 2 wherein the seat portion is pivotally connected to the side panels of the base portion.

4. A lift-recliner chair as claimed in claim 3 wherein the seat portion is at least partially supported by the side panels of the base portion.

5. A lift-recliner chair as claimed in claim 1 wherein the seat portion is pivoted with respect to the base portion about a pivot axis positioned towards a front of the base portion.

6. A lift-recliner chair as claimed in claim 1 wherein the back portion comprises a generally rectangular frame and a pair of pivot arms which extend from the frame and pivotally connect the frame to the seat portion.

7. A lift-recliner chair as claimed its claim 6 wherein the pivot arms pivotally connect the back portion to respective side panels of the seat portion.

8. A lift-recliner chair as claimed in claim 6 wherein the pivot arms comprise part of a bell-crank for moving the back portion about a pivot axis spaced from the rectangular frame.

9. A lift-recliner chair as claimed in claim 6 wherein the pivot arms extend parallel with and adjacent to respective vertical side panels of the seat portion on an interior side thereof.

10. A lift-recliner chair as claimed in claim 1 wherein the second actuator is operatively coupled to the back portion and moves the back portion relative to the seat portion such that the back portion pivots away from the seat portion when the seat portion is raised.

11. A lift-recliner chair as claimed in claim 10 wherein the back portion pivots away from the seat portion once the seat portion is moved during lifting to a pre-determined position between the lowered position and the fully raised position.

12. A lift-recliner chair as claimed in claim 1 wherein the base portion further comprises a front panel which is pivotally mounted to respective side panels of the base portion and movable with respect to the base portion for movement from a generally vertical position to a generally horizontal position to provide a retractable foot rest.

13. A lift-recliner chair as claimed in claim 12 wherein the actuator assembly comprises a third actuator operably coupled to the side panels of the base portion for moving the front panel about a pivot axis.

14. A lift-recliner chair as claimed in claim 12 wherein the front panel is pivotally moveable with respect to the base portion about a pivot axis that extends through an area that is adjacent to an upper front corner of the side panels of the base portion.

15. A lift-recliner chair as claimed in claim 1, wherein the base portion includes a plurality of base side panels and a base cross member that extends between and is fixed at both ends to a respective one of the base side panels, wherein the seat portion includes a plurality of seat side panels and a seat cross member that extends between and is fixed at both ends to a respective one of the seat side panels, and wherein the first actuator is operably coupled to the base cross member and the second actuator is operably coupled to the seat cross member.

16. A lift-recliner chair as claimed in claim 15, wherein the base side panels and the seat side panels cooperate to enclose the first and second actuators.

17. A lift-recliner chair comprising:

a base portion;

a seat portion pivotally connected to the base portion;

a back portion pivotally connected to the seat portion; and

an actuator assembly for altering the configuration of the chair including a first actuator for moving the seat portion with respect to the base portion and a second actuator for moving the back portion with respect to the seat portion, the actuator assembly being substantially enclosed on an underside of the chair, wherein the first actuator is operably coupled to the base portion and the seat portion, and wherein the second actuator is operably coupled to the seat portion and the back portion,

wherein the base portion further comprises a front panel which is pivotally mounted to respective side panels of the base portion and movable with respect to the base portion for movement from a generally vertical position to a generally horizontal position to provide a retractable foot rest,

wherein the front panel is pivotally moveable with respect to the base portion about a pivot axis that extends through an area that is adjacent to an upper front corner of the side panels of the base portion,

wherein the pivot axis of the front panel is coincident with the pivot axis connecting the seat portion to the base portion.

18. A lift-recliner chair comprising:

a base portion;

a seat portion pivotally connected to the base portion;

a back portion pivotally connected to the seat portion; and

an actuator assembly for altering the configuration of the chair including a first actuator for moving the seat portion with respect to the base portion and second actuator for moving the back portion with respect to the seat portion, the actuator assembly being substantially enclosed on an underside of the chair, wherein the first actuator is operably coupled to the base portion and the second actuator is operably coupled to the seat portion;

wherein the seat portion includes a rear panel, wherein the seat portion is pivotally connected to the base portion about a first pivot axis and pivotally connected to the back portion about a second pivot axis, and wherein the rear panel of the seat portion is curved having a center of curvature substantially coincident with the first pivot axis.