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US 5,765,913 AGranted
Glider chair
AssigneeLa-Z-Boy Incorporated
InventorsLarry P. LaPointe, Jonathan R. Saul, Richard E. Marshall
Life of this patent
Estimating the term…
Abstract
A glider chair including an improved glider linkage mechanism having a pair of front and rear glide links which are laterally preloaded such that non-precision bearing may be utilized. The glider chair further includes a rigid "box-like" chair frame surrounding the glider mechanism and having ample clearance therein so that extended glide links may be utilized to further provide a smooth and relatively flat glide motion while maintaining an appropriate height between the seat and floor.
Claims53
A glider chair comprising:
- a base glide assembly having a base supported on a floor surface;
- a glider mechanism including a left four bar linkage and a right four bar linkage, each of said left and right four bar linkage having a glide bracket, a front glide link having a first end pivotally connected at a front upper pivot to said base glide assembly and a second end pivotally connected at a front lower pivot to said glide bracket, and a rear glide link having a first end pivotally connected at a rear upper pivot to said base glide assembly and a second end pivotally connected at a rear lower pivot to said glide bracket;
- a chair frame having a pair of side walls interconnected by a seat deck, said chair frame operably coupled to said glide bracket for permitting gliding movement of said chair frame with respect to said base glide assembly;
- a seat spring secured to said seat deck above said glider mechanism;
- and
- a seat spring support bracket interdisposed between said seat deck and said seat spring to locally support said seat spring above said glider mechanism.
3 more elements
A glider chair comprising:
- a base glide assembly having a base supported on a floor surface;
- a glider mechanism including a left four bar linkage and a right four bar linkage, each of said left and right four bar linkage including a glide bracket having a first vertical flange portion and a second vertical flange portion offset laterally outwardly from said first vertical flange portion by a horizontal flange portion, a front glide link having a first end pivotally connected at a front upper pivot to said base glide assembly and a second end pivotally connected at a front lower pivot to said first vertical flange portion of said glide bracket, and a rear glide link having a first end pivotally connected at a rear upper pivot to said base glide assembly and a second end pivotally connected at a rear lower pivot to said first vertical flange portion of said glide bracket;
- and
- a chair frame having a pair of side walls interconnected by a seat deck, said chair frame secured to said second vertical flange portion of said glide bracket for permitting gliding movement of said chair frame with respect to said base glide assembly.
1 more element
A glider chair comprising:
- a base supported on a floor surface;
- a base glide assembly disposed on said base and having a pair of front uprights each of said pair of front uprights having a fixed end secured to said base and a free end extending upwardly from said base, and a pair of rear uprights, each of said rear uprights having a fixed end secured to said base and a free end extending upwardly from said base;
- a chair glide assembly including a subframe, a glide bracket secured to said subframe, and a glider mechanism having a pair of front glide links pivotally connected at a first end to said free end of said pair of front uprights opposite said base and pivotally connected at a second end to said glide bracket, and a pair of rear glide links pivotally connected at a first end to said free end of said pair of rear uprights opposite said base and pivotally connected at a second end to said glide bracket;
- and
- a chair frame having a pair of side walls, a front support member interconnected to a front portion of said side walls, a rear support member interconnected to a rear portion of said side walls, and a seat assembly having a seat member and a seat back, said chair frame secured to said glide bracket for permitting gliding movement of the chair frame with respect to the base glide assembly.
2 more elements
A glider chair comprising:
- a base supported on a floor surface;
- a subframe disposed on said base and having an upright extending upwardly therefrom;
- a chair frame having a pair of side walls, a front support member interconnected to a front portion of said side walls, a rear support member interconnected to a rear portion of said side walls, and a seat assembly having a seat member, a seat back, and a swing link assembly pivotally interconnecting said seat back and said seat member and suspending said seat member within said chair frame to permit reclining movement of said seat assembly between an upright position and a reclined position;
- a glide assembly operably coupling said chair frame to said subframe for gliding movement thereon, said glide assembly including a pair of front glide links and a pair of rear glide links, each of said glide links having a first end pivotally connected to said upright at an end opposite said base and a second end pivotally connected a glide bracket, said glide bracket coupled to said chair frame;
- a glide stop assembly disposed on said glide assembly and operably coupled to an actuation mechanism for selectively positioning said glide stop assembly to directly engage at least one glide link of said pair of front glide links and said pair of rear glide links for preventing said gliding movement;
- a tilt control assembly interconnecting said chair frame to said glide assembly to provide tilting movement therebetween, said tilt control assembly being operably coupled to said actuation mechanism for actuating said tilting movement;
- and
- a leg rest assembly supported from and operably coupled to said actuation mechanism for selectively moving said leg rest assembly between a retracted position and an extended position.
5 more elements
A glider chair comprising:
- a base supported on a floor surface;
- a chair frame,
- a glider mechanism including a pair of front glide links and a pair of rear glide links interconnected between said base and said chair frame for permitting gliding movement of said chair frame with respect to said base, each of said glide links having a first end pivotally coupled to said base and a second end pivotally coupled said chair frame;
- and
- a glide stop assembly operably coupled to said glider mechanism and independent of said base, said glide stop assembly being selectively positionable between an unlocked position to permit gliding movement of said chair frame with respect to said base and a locked position such that said glide stop assembly directly engages at lest one glide link of said pair of front glide links and said pair of rear glide links to prevent gliding movement of said chair frame with respect to said base.
2 more elements
A glider chair comprising:
- a base supported on a floor surface;
- a chair subframe;
- a glider mechanism interconnected between said base and said chair subframe for permitting gliding movement of said chair subframe with respect to said base;
- a chair frame having a front portion engaging said chair subframe for support thereon when said glider chair is in a non-tilted position;
- and
- a tilt control assembly including a pivot bracket secured to said chair subframe, a pivot mount secured to said chair frame, and a tilt control linkage operably coupled between said chair subframe and said chair frame, said pivot mount cooperating with said pivot bracket to define a single pivot axis about which said chair frame tilts relative to said chair subframe, said tilt control linkage selectively moveable to urge said front portion of said chair frame in an upwardly direction out of engagement with said chair subframe and to rotate said chair frame about said single pivot axis for tilting said chair frame relative to said chair subframe.
3 more elements
Dependencies are inferred from the claim text.