US 4,045,081 AGranted

Reclining chair

AssigneeNHK Spring Co., Ltd.

InventorKiyoshi Ueno

Life of this patent

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Abstract

A reclining chair having a seat section slidably connected to a frame section. A rearward end portion of the seat section and a back-rest section are rockably and separably connected to a lower end portion of the back-rest section and to a rearward end portion of the frame section, respectively. A friction brake apparatus for non-stepwise controlling the sliding movement of the seat section is fitted to one side of the seat section, and through the brake apparatus the seat section is connected to the frame section by coupling means.

Claims5

Dependent claims

A reclining chair comprising:

a seat section having a front end and a rear end, a back-rest section having a lower end rockably and separably connected to the rear end of said seat section;
a frame section rockably and separably connected to said back-rest section and including a pair of mutually separably connected side frames and an upwardly extending portion;
a friction brake apparatus tilted to one side of said seat section and including a housing, a slidable shaft having one end extended through said housing, a pair of coil springs differing in twisted direction from each other and fitted over said shaft so as to grip said shaft thereby to lock said shaft by frictional force between said coil springs and said shaft, release means rockably fitted over said shaft between said coil springs in a manner allowed to abut on the distal coil ends of mutually opposing end portions of said coil springs and so designed that when said release means has been rocked, said coil springs are twisted back to unlock said shaft, sleeve means received within said housing adjacent to said coil springs so as to cause respective coils of said coil springs to be twisted back uniformly, and bushing means fixed within said housing and having a pair of engaging means engaged with the distal bent coil ends of the other end portions of said coil springs, respectively, so as to prevent them from being rocked, and a pair of inclined shoulders each having a larger angle of inclination than the helical angle of said coil springs and abutting on the distal coil end of said other end portions of said coil springs, respectively;
and coupling means for slidably coupling said seat section to said frame section through said brake apparatus, said coupling means including a fitting for fitting said housing of said brake apparatus to said seat section and a coupling mechanism for fixedly coupling an extended end portion of said shaft of said brake apparatus to said frame section, said coupling means including a connector separably fitted into said upwardly extending portion thereby slidably coupling said seat section to said frame section.

1 more element

Dependencies are inferred from the claim text.

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Abstract

A reclining chair comprising:

a seat section having a front end and a rear end, a back-rest section having a lower end rockably and separably connected to the rear end of said seat section;
a frame section rockably and separably connected to said back-rest section and including a pair of mutually separably connected side frames and an upwardly extending portion;
a friction brake apparatus tilted to one side of said seat section and including a housing, a slidable shaft having one end extended through said housing, a pair of coil springs differing in twisted direction from each other and fitted over said shaft so as to grip said shaft thereby to lock said shaft by frictional force between said coil springs and said shaft, release means rockably fitted over said shaft between said coil springs in a manner allowed to abut on the distal coil ends of mutually opposing end portions of said coil springs and so designed that when said release means has been rocked, said coil springs are twisted back to unlock said shaft, sleeve means received within said housing adjacent to said coil springs so as to cause respective coils of said coil springs to be twisted back uniformly, and bushing means fixed within said housing and having a pair of engaging means engaged with the distal bent coil ends of the other end portions of said coil springs, respectively, so as to prevent them from being rocked, and a pair of inclined shoulders each having a larger angle of inclination than the helical angle of said coil springs and abutting on the distal coil end of said other end portions of said coil springs, respectively;
and coupling means for slidably coupling said seat section to said frame section through said brake apparatus, said coupling means including a fitting for fitting said housing of said brake apparatus to said seat section and a coupling mechanism for fixedly coupling an extended end portion of said shaft of said brake apparatus to said frame section, said coupling means including a connector separably fitted into said upwardly extending portion thereby slidably coupling said seat section to said frame section.

1 more element