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US 3,999,799 AGranted
Adjustable reclining chair, and method
OwnerAlexander C. Daswickinventor
Life of this patent
Estimating the term…
Abstract
An adjustable reclining chair includes a seat and back supporting frame having a pair of rocker or rocker-shaped members. The rocking action of the rocker members is, however, restrained by a restraint mechanism. A drive mechanism is utilized to move the restraint mechanism, in either a forward or a rearward direction, to adjust the angle at which the chair reclines.
Claims52
An adjustable reclining chair comprising:
- a seat and back supporting frame having a parallel pair of curved rocker members depending downwardly therefrom and adapted to engage a floor surface on a selected longitudinal portion of their length;
- a restraint mechanism including a front chuck disposed in front of the floor-engaging portion of said rocker members and a rear chuck disposed to the rear thereof, said front and rear chucks engaging the floor surface, said restraint mechanism being mounted as a unit, relative to said rocker members, for movement relative to said frame along a curved pathway parallel to said curved rocker members either forwardly or rearwardly relative to and along said rocker members;
- and
- drive means interconnecting said frame and said restraint mechanism for selectively moving said restraint mechanism relative to said frame so that said restraint mechanism moves along the floor and changes the tilt of said rocker members and hence the angle at which said frame reclines.
1 more element
An adjustable reclining chair comprising:
- a chair frame including a parallel pair of curved rocker members together with a seat and a back supported thereon, said rocker members being adapted to engage a floor surface on a selected longitudinal portion of their length corresponding to a selected angle of inclination of said chair frame;
- a restraint mechanism including a front chuck engaging the floor surface in front of the floor-engaging portion of said rocker members and a rear chuck engaging the floor surface to the rear thereof, said restraint mechanism being adapted for selective movement as a unit along a floor surface in either a forwardly or a rearwardly direction relative to said rocker members;
- and
- drive means interconnecting said frame with said restraint mechanism and operable for selectively moving said restraint mechanism relative to said frame along a curved path parallel to the curved lower surfaces of said rocker members to thereby cause said restraint mechanism to move along the floor surface while concurrently changing the angle of inclination of said chair frame relative to the floor surface.
1 more element
An adjustable reclining chair comprising:
- a chair frame including a parallel pair of rocker members each curved to form substantially an arc of a circle, together with a seat and a back supported on said rocker members, said rocker members engaging a floor surface upon which said reclining chair is supported;
- a restraint mechanism including a front chuck, a rear chuck, and a carriage to which said chucks are attached, said chucks engaging the floor surface respectively in front of, and behind, the floor-engaging portion of said rocker members;
- gear means interconnecting said restraint mechanism with said chair frame, including a curved toothed rack disposed substantially concentric to said rocker members and a pinion gear meshing with said rack, said rack being attached to one of said carriage and said frame and said pinion gear being attached to the other thereof;
- and
- manually operated gear reduction drive means coupled to said pinion gear for selectively rotating said restraint mechanism relative to said chair frame about the centers of said circles, thereby causing said front and rear chucks to move relative to said rocker members along a curved path which is parallel to said rocker members, but at the same time along a straight pathway parallel to the floor surface;
- said rocker members then having a different portion thereof engaging the floor surface and said chair frame being then confined by said restraint mechanism to a newly selected angle of inclination relative to the floor surface.
3 more elements
An adjustable reclining chair comprising:
- a chair frame including a parallel pair of curved rocker members together with a seat and a back supported thereon, said rocker members being adapted to engage a floor surface on a selected longitudinal portion of their length corresponding to a selected angle of inclination of said chair frame;
- a restraint mechanism including a front chuck engaging the floor surface in front of the floor-engaging portion of said rocker members and a rear chuck engaging the floor surface to the rear thereof, said restraint mechanism being adapted for selective movement as a unit along the floor surface in either a forwardly or a rearwardly direction relative to said rocker members;
- and
- drive means interconnecting said frame with said restraint mechanism and operable for selectively moving said restraint mechanism relative to said frame along a curved path parallel to the curved lower surfaces of said rocker members to thereby cause said restraint mechanism to move along the floor surface while concurrently changing the angle of inclination of said chair frame relative to the floor surface;
- said drive means including a curved toothed rack and a pinion gear meshing therewith, one being attached to said frame and the other being attached to said restraint mechanism.
2 more elements
An adjustable reclining chair comprising:
- a chair frame including a parallel pair of curved rocker-shaped members together with a seat and a back supported thereon, said rocker-shaped members being adapted to engage a floor surface on a selected longitudinal portion of their length corresponding to a selected angle of inclination of said chair frame;
- a restraint frame movably secured to said chair frame and having a rear chuck adapted to engage the floor surface to the rear of the floor-engaging portion of said rocker-shaped members, said restraint frame being mounted upon said chair frame for movement of said rear chuck along a curved pathway parallel to said curved rocker-shaped members either forwardly or rearwardly relative to and along said rocker-shaped members;
- drive means interconnecting said chair frame with said restraint frame and operable for selectively driving said restraint frame in a turning movement relative to said chair frame, said turning movement causing said rear chuck to move along the floor surface longitudinally of said rocker-shaped members and concurrently causing said chair frame to change its angle of inclination relative to the floor surface;
- and
- said drive means including a curved toothed rack and a pinion gear meshing therewith, one being attached to said chair frame and the other being attached to said restraint frame, and manually operated gear reduction drive means coupled to said pinion gear.
2 more elements
An adjustable reclining chair comprising:
- a chair frame having a seat and a back, and a pair of curved rocker-shaped members adapted to engage a floor surface;
- a restraint frame movable secured to said chair frame and having a part thereof adapted to engage the floor surface at a location longitudinally displaced from the engagement thereof by the rocker-shaped members, said restraint frame operating to inhibit a rocking movement of said chair frame and to restrain same to a selected angle of inclination relative to the floor surface;
- and
- drive means coupled between said restraint frame and said chair frame and operable for selectively turning said restraint frame relative to said chair frame so that the floor engaging part of said restraint frame moves along a curved pathway that is parallel to said curved rocker-shaped members and at the same time along the floor surface longitudinally of said rocker-shaped members and concurrently causes said chair frame to change its angle of inclination.
1 more element
A method of using a rocking chair, having a chair frame with curved rockers, as an adjustable reclining chair, comprising the steps of:
- selecting a restraint frame;
- securing one part of the restraint frame to the chair frame so that another part of the restraint frame engages the floor surface at a location longitudinally displaced from the engagement thereof by the rockers;
- placing a weight load on the chair frame in such a position that the weight thereof is divided between the rockers and the restraint frame;
- and
- turning the restraint frame relative to the chair frame so as to drivingly move said other part of said restraint frame along a curved pathway parallel to said curved rockers and at the same time along the floor surface, thereby changing the angle at which the chair frame reclines.
2 more elements
Dependencies are inferred from the claim text.