US 5,342,113 AGranted

Multi-purpose baby rocking chair

OwnerChung-Tien Wuinventor

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Abstract

Disclosed is a multi-purpose baby rocking chair which has a rocking mechanism powered by a DC motor. The rocking mechanism includes a rotary arm which is driven by the motor to turn upward and downward, causing the seat of the baby rocking chair connected to the rocking mechanism to swing up and down in a vertically reciprocating movement. The baby rocking chair can also be conveniently converted into a handcart.

Claims5

Dependent claims

A multi-purpose baby rocking chair, comprising:

a base which is a substantially rectangular-shaped body equipped with wheels at a bottom thereof and has a positioning bar pivotally fixed at each side thereof, a brake assembly disposed at a rear end thereof to selectively lock said baby rocking chair when the same is used as a rocking chair and in a rocking state or unlock said baby rocking chair when the same is used as a handcart, a pivot assembly provided near an upper front thereof, and a spring connected to a top portion thereof;
a seat having a horizontal portion pivotally connected to said pivot assembly on said base and an inclined back portion extending upward and outward from the horizontal portion, said back portion being provided with a retractable push bar which is normally concealed inside said back portion when it is not in use, and a positioning hole at each side thereof for receiving one free end of said positioning bars at two sides of said base body;
and
a rocking mechanism in which a DC motor powered by a chargeable battery is used to produce rotating torque so as to turn a driving gear connected to one end of a driving shaft, said driving shaft connecting at another end thereof a rotary arm, and said rotary arm being connected at its another end to a lower end of a coupling, an upper end of said coupling being fitted into a lower end of a rotating sleeve, said rotating sleeve having an upper end provided with internal threads for an externally threaded core member to screw thereinto, and said core member having a threaded hole provided at a top portion thereof so that said entire rocking mechanism is fixedly screwed to the bottom side of said seat by means of screw and nut engaging with said top threaded hole of said rocking mechanism;
and said rotary arm being repeatedly pulled by said motor through said driving gear and said driving shaft to turn upward or downward and thereby causing said seat connected with said rocking mechanism to swing in vertically reciprocating movement;
said baby rocking chair being characterized by that said brake assembly provided at the rear end of said base can be selectively unlocked and said positioning bars at two sides of said base can be pivotally shifted upward so that the free end thereof can be engaged with said positioning holes on two sides of said seat, and said concealed and retractable push bar of said seat can be pulled outward so that said baby rocking chair functions like a handcart.

3 more elements

Dependencies are inferred from the claim text.

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Abstract

A multi-purpose baby rocking chair, comprising:

a base which is a substantially rectangular-shaped body equipped with wheels at a bottom thereof and has a positioning bar pivotally fixed at each side thereof, a brake assembly disposed at a rear end thereof to selectively lock said baby rocking chair when the same is used as a rocking chair and in a rocking state or unlock said baby rocking chair when the same is used as a handcart, a pivot assembly provided near an upper front thereof, and a spring connected to a top portion thereof;
a seat having a horizontal portion pivotally connected to said pivot assembly on said base and an inclined back portion extending upward and outward from the horizontal portion, said back portion being provided with a retractable push bar which is normally concealed inside said back portion when it is not in use, and a positioning hole at each side thereof for receiving one free end of said positioning bars at two sides of said base body;
and
a rocking mechanism in which a DC motor powered by a chargeable battery is used to produce rotating torque so as to turn a driving gear connected to one end of a driving shaft, said driving shaft connecting at another end thereof a rotary arm, and said rotary arm being connected at its another end to a lower end of a coupling, an upper end of said coupling being fitted into a lower end of a rotating sleeve, said rotating sleeve having an upper end provided with internal threads for an externally threaded core member to screw thereinto, and said core member having a threaded hole provided at a top portion thereof so that said entire rocking mechanism is fixedly screwed to the bottom side of said seat by means of screw and nut engaging with said top threaded hole of said rocking mechanism;
and said rotary arm being repeatedly pulled by said motor through said driving gear and said driving shaft to turn upward or downward and thereby causing said seat connected with said rocking mechanism to swing in vertically reciprocating movement;
said baby rocking chair being characterized by that said brake assembly provided at the rear end of said base can be selectively unlocked and said positioning bars at two sides of said base can be pivotally shifted upward so that the free end thereof can be engaged with said positioning holes on two sides of said seat, and said concealed and retractable push bar of said seat can be pulled outward so that said baby rocking chair functions like a handcart.

3 more elements