Reclinable chair
AssigneeLa-Z-Boy Chair Company
InventorsWilliam Pacitti, Harold P. Ruble
Life of this patent
Estimating the term…
Abstract
A chair has a chair body pivoted on a carriage and a reclining back on the chair body operates linkage to move the carriage on a base and to tilt the chair body with respect to the carriage. A hand lever operates a leg rest mounted on the chair body and, at the same time, operates through linkage to tilt the chair body on the carriage.
Claims31
A chair comprising base means, a chair frame, pivot means to tiltably mount said frame on said base means for pivotal tilting about a horizontal axis, a leg rest mounted on the chair frame for movement between a retracted position and an elevated position as well as intermediate positions, manually operated actuating means on the chair frame for moving the leg rest to said positions, tilt means acting between the chair frame and the base means for tilting the chair frame by pivoting it about said axis, and means operatively connecting the actuating means to the tilt means for simultaneously operating the tilt means to pivot the chair frame about said axis during movement of the leg rest and for holding the chair frame in a tilted position determined by and corresponding to the position of the leg rest.
A chair comprising a chair frame, first means supporting said chair frame for longitudinal translation parallel to a floor and for tilting between forward and rear positions, a back frame, second means supporting said back frame on said chair frame for movement between upright and full recline positions in response to pressure applied by the back of an occupant of the chair, and third means interconnecting the chair frame and the back frame and the first and second means whereby movement of said back frame and tilting of said chair from occur together, said first means including a carriage mounted on a base and tiltably supporting the chair frame for pivoting about a fixed horizontal axis on the carriage and for longitudinal translation between rear-upright and forward-recline positions, said third means being interconnected to said carriage and base whereby longitudinal translation of the chair frame occurs together with tilting of the chair frame about said axis and movement of the back frame.
A reclining chair comprising base means, a chair frame, first means including a carriage supporting said chair frame on said base means for longitudinal translation between rear and forward positions, second means supporting said chair frame and on said carriage for tilting about a horizontal axis between forward and rear positions, a leg rest, third means supporting said leg rest on the chair frame for movement between retracted and elevated positions, a back frame, fourth means supporting said back frame on said chair frame for movement between upright and full recline positions, fifth means interconnecting the first, second and fourth means and responsive to back pressure on the back frame whereby movement of the back frame automatically translates said carriage and chair frame and tilts said chair frame on said carriage about said axis in amounts corresponding to and determined by the amount of movement of the back frame and holds the chair frame in its tilted position, sixth means for moving said leg rest on said third means, and seventh means interconnecting the second, third and sixth means responsive to movement of the leg rest whereby movement of the leg rest automatically tilts said chair frame on said carriage about said axis in an amount corresponding to and determined by the amount of movement of the leg rest and holds the chair frame in its tilted position.
A reclining chair comprising a base, a carriage mounted on the base for longitudinal horizontal movement toward the front and toward the rear of the chair, a chair frame mounted on the carriage and conjointly moving horizontally with it, a back frame mounted on the chair frame for movement between an upright position and a recline position through intermediate position in response to pressure from the back of an occupant of the chair, and linkage means actuated by movement of the back frame interconnecting the back frame, chair frame, carriage, and base for automatically moving and horizontally positioning the carriage on the base in accordance with the position of the back frame.
A reclining chair comprising a base, a carriage mounted on the base for longitudinal horizontal movement toward the front and toward the rear of the chair, a chair frame mounted on the carriage and movable horizontally with it, a back frame mounted on the chair frame for movement between an upright position and a recline position in response to pressure from the back of an occupant of the chair, and linkage means actuated by movement of the back frame interconnecting the back frame, chair frame, carriage, and base for automatically moving and horizontally positioning the carriage on the base in accordance with the position of the back frame, said linkage means including a long swing link on opposite sides of the chair frame having a top end adjacent the chair frame and a bottom end adjacent said carriage, pivot means between the top ends of the long swing links and the chair frame, said back frame being attached to each swing link so that recline pressure thereon by the back of a chair occupant is applied above the pivot means and moves the link in a forward direction about the pivot means, said linkage means including push link mechanism attached to and moved by the bottom ends of said links and connected to said base for moving the carriage on the base, push link mechanism including rocker links on opposite sides of the chair, transversely extending means journalling intermediate points on said rocker links on said chair frame, push linkage pivotally connecting the rear ends of the rocker links to the bottom ends of the swing links whereby movement thereof rocks said rocker links on said transverse journal means, and long push links pivoted at their front ends to the front ends of the rocker links and at their rear ends to the rear of the base and serving to define the minimum distance between said transverse journal means and the rear of the base whereby movement of said swing links in a forward direction, said transverse journal means including a transverse drive shaft extending between and journalled on opposite sides of the chair frame, a handle for turning the drive shaft, a leg rest supported on the chair frame for movement between retracted and elevated positions, and leg rest operating mechanism actuated by said transverse drive shaft and connected to said leg rest to move it between said retract and elevated positions.
A reclining chair comprising a base, a carriage mounted on the base for longitudinal horizontal movement toward the front and toward the rear of the chair, a chair frame mounted on the carriage and movable horizontally with it, a back frame mounted on the chair frame for movement between an upright position and a recline position in response to pressure from the back of an occupant of the chair, and linkage means actuated by movement of the back frame interconnecting the back frame, chair frame, carriage, and base for automatically moving and horizontally positioning the carriage on the base in accordance with the position of the back frame, pivots mounting the chair frame on the carriage for tilting about a horizontal axis located at an intermediate point in the length of the chair frame, said linkage means including horizontal frame tilt pivots on the front of the chair frame whereby vertical movement of said frame tilt pivots tilts the chair frame about said horizontal axis, tilt links pivoted on said frame tilt pivots and extending downwardly, horizontal carriage tilt pivots mounted on said carriage, tilt drive links pivoted at their lower ends to said carriage tilt pivots and at their upper ends to the lower ends of the tilt links, and tilt actuating means for pivoting said links to change the distance between the axis of said frame tilt pivots and said carriage tilt pivots and thereby tilt the chair frame about said horizontal axis.
In a chair having a base, a chair frame, support means mounting the chair frame on the base for tilting about a horizontal axis located between the front end and the back end of the chair frame, elevatable leg rest means mounted on the chair frame including a leg rest frame movable between elevated and retracted positions, leg rest actuating means on the frame for actuating the leg rest means, a non-circular transverse shaft parallel to said horizontal axis journalled at opposite ends on said chair frame for operating said actuating means, a handle for manually turning the shaft to actuate the leg rest means, toggle means for affecting operation of the leg actuating means and including a toggle lever having a non-circular opening receiving the shaft whereby the lever and shaft turn together but the lever is shiftable along the length of the shaft, tilt means between the chair frame and support means for tilting the chair frame about said horizontal axis, tilt actuating means operatively connected to said tilt means and including a tilt lever having a non-circular opening receiving the shaft whereby the tilt lever and shaft turn together but the tilt lever is shiftable along the length of the shaft, and key means keying the toggle lever and tilt lever to each other for joint angular and longitudinal movement with respect to said shaft.
Dependencies are inferred from the claim text.