Furniture member with powered wall-proximity mechanism

Patent metadata

Field	Value
Publication number	US-10524574-B2
Application number	US-201815983486-A
Country	US
Kind code	B2
Filing date	May 18, 2018
Priority date	May 18, 2018
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

A furniture member includes a base frame, a seat assembly, a motor assembly, a legrest mechanism and a wall-proximity mechanism. The seat assembly is supported by the base frame and includes a seat frame, a seat bottom, a seat back and a legrest. The legrest is movable between a retracted position and an extended position. The seat back is movable between an upright position and a reclined position. The motor assembly includes a draw bar that moves along a motor extrusion housing from an initial position to a first position and to a second position. The legrest mechanism is driven by the draw bar to move the legrest between the retracted and extended positions. The wall-proximity mechanism is driven by the draw bar to translate the seat frame forward relative to the base frame in response to movement of the draw bar from the first position to the second position.

First claim

What is claimed is:

1. A furniture member comprising:
a base frame for supporting the furniture member on a support surface;
a seat assembly supported by the base frame and including a seat base, a seat bottom, and a seatback, wherein the seat base supports the seat bottom and the seatback;
a wall-proximity mechanism connected to the base frame and the seat assembly, the wall-proximity mechanism configured to translate the seat assembly forward relative to the base frame from a first position to a second position; and
a stability linkage connected to the wall-proximity mechanism, the stability linkage including a leg, the leg moving forward of the base frame and toward the support surface when the wall-proximity mechanism translates the seat assembly forward to the second position to prevent the furniture member from tipping forward,
wherein when the seat assembly is in the second position, at least a portion of the leg is disposed forward of the base frame and between the support surface and a front, lower edge of the seat base so that the leg restricts the base frame from tipping forward relative to the support surface, and
wherein the leg of the stability linkage moves toward the support surface but remains spaced apart from the support surface when the wall-proximity mechanism translates the seat assembly forward.

2. The furniture member of claim 1 , further comprising a motor assembly mounted to the base frame, the motor assembly including a draw bar that moves along a motor extrusion housing to cause the wall-proximity mechanism to translate the seat assembly forward relative to the base frame and cause the leg to move forward relative to the base frame.

3. The furniture member of claim 2 , wherein the seat assembly includes a legrest, the legrest coupled to the seat base by a legrest mechanism that is configured to move the legrest relative to the seat base from a retracted position to an extended position, the legrest mechanism coupled to the draw bar such that movement of the draw bar along the motor extrusion housing causes the legrest mechanism to move the legrest from the retracted position to the extended position.

4. The furniture member of claim 3 , wherein the motor assembly moves the draw bar along the motor extrusion housing from an initial position to a first position and to a second position, the movement of the draw bar from the initial position to the first position causing the legrest mechanism to move the legrest from the retracted position to the extended position, and the movement of the draw bar from the first position to the second position causing the wall-proximity mechanism to translate the seat assembly forward relative to the base frame and causing the leg to move forward relative to the base frame.

5. The furniture member of claim 4 , wherein:
the motor assembly further includes a sequencing mechanism, the sequencing mechanism comprising a front rod and a spring, the spring connected between the front rod and the draw bar, the front rod connected to the seat base; and
the sequencing mechanism is configured to apply a force to the draw bar toward the front rod to cause the movement of the draw bar to result in the legrest mechanism moving the legrest from the retracted position to the extended position before movement of the draw bar results in the wall-proximity mechanism translating the seat assembly forward relative to the base frame.

6. A furniture member comprising:
a base frame for supporting the furniture member on a support surface;
a seat assembly supported by the base frame, the seat assembly including a legrest and a seat frame;
a motor assembly mounted to the base frame, the motor assembly including a draw bar that moves along a motor extrusion housing from an initial position to a first position and to a second position;
a legrest mechanism connected to the legrest and the draw bar, the legrest mechanism configured to move the legrest relative to the seat frame from a retracted position to an extended position when the draw bar moves from the initial position to the second position;
a wall-proximity mechanism connected to the base frame, the seat assembly and the draw bar, the wall-proximity mechanism configured to translate the seat assembly forward relative to the base frame when the draw bar moves from the first position to the second position; and
a sequencing mechanism comprising a front rod and a spring, the spring connected between the front rod and the draw bar, the front rod connected to the seat frame, wherein the sequencing mechanism is configured to apply a force to the draw bar toward the front rod to cause movement of the draw bar to result in the legrest mechanism moving the legrest from the retracted position to the extended position before movement of the draw bar results in the wall-proximity mechanism translating the seat assembly forward relative to the base frame.

7. The furniture member of claim 6 , wherein the motor assembly includes a single motor that moves the draw bar along the motor extrusion housing, the motor extrusion housing having a linear shape that is rotatably connected to the base frame.

8. The furniture assembly of claim 7 , wherein the motor assembly includes a lead screw and a lead screw nut positioned inside the motor extrusion housing, the draw bar connected to the lead screw nut.

9. The furniture member of claim 7 , wherein the draw bar translates forward relative to the base frame when the draw bar moves from the initial position to the first position.

10. The furniture member of claim 9 , wherein the draw bar translates forward relative to the base frame when the draw bar moves from the first position to the second position.

11. The furniture member of claim 10 , wherein the draw bar is connected to and axially offset from a pin by a drive plate, the pin connected to the legrest mechanism and to the wall-proximity mechanism, wherein the pin is rigidly connected to the seat frame and extends from the seat frame to the legrest mechanism.

12. A furniture member comprising:
a base frame;
a seat assembly supported by the base frame and including a seat frame, a seat bottom, a seat back and a legrest, the legrest movable relative to the base frame and seat frame between a retracted position and an extended position, the seat back movable relative to the base frame and seat frame between an upright position and a reclined position;
a motor assembly mounted to the base frame, the motor assembly including a draw bar that moves along a motor extrusion housing from an initial position to a first position and to a second position;
a legrest mechanism attached to the legrest and the seat frame and driven by the draw bar configured to move the legrest between the retracted and extended positions in response to movement of the draw bar from the initial position to the first position; and
a wall-proximity mechanism connected to the base frame, the seat assembly and the draw bar configured to translate the seat frame forward relative to the base frame in response to movement of the draw bar from the first position to the second position,
wherein:
the draw bar is connected to a pin by a drive plate, the drive plate positioned adjacent the legrest mechanism and the pin connected to the wall-proximity mechanism;
movement of the draw bar from the initial position to the first position causes the drive plate to rotate relative to the pin; and
movement of the draw bar from the first position to the second position causes the pin to translate forward relative to base frame.

13. The furniture member of claim 12 , wherein the motor assembly includes a single motor that moves

Assignees

• La Z Boy Inc

Inventors

• Lapointe Larry P
• Adams Chad E
• Stotz Gerald G

Classifications

• A47C1/034 Primary

  the parts including a leg-rest or foot-rest (A47C1/037 takes precedence) · CPC title

• A47C7/5062

  rectilinearly · CPC title

• A47C7/5068 Primary

  actuated by linkages · CPC title

• A47C7/506

  of adjustable type · CPC title

• A47C1/024

  the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination · CPC title