Infant Chair Apparatus

• US 20150245719A1
• Filed: 02/13/2015
• Published: 09/03/2015
• Est. Priority Date: 02/17/2014
• Status: Active Grant

• Current Assignee: Wonderland Switzerland AG
• Original Assignee: Wonderland Nurserygoods Company Limited
• Inventors: ZHONG, Zhi-Ren
• Granted Patent: US 9,433,303 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A47D 13/10 Rocking-chairs; Indoor Swings ; Baby bouncers
• CPC Class Codes: A47D 9/057 driven by electric motors

Abstract

An infant chair apparatus includes a support base, a movable platform assembled with the support base for sliding movement, a seat portion arranged above the support base and pivotally connected with the movable platform, a rotation drive mechanism operable to drive reciprocated rotation of the seat portion relative to the support base, and a sliding drive mechanism operable to drive the movable platform to slide relative to the support base.

Claims

1. An infant chair apparatus comprising:

a support base;

a movable platform assembled with the support base for sliding movement;

a seat portion arranged above the support base, the seat portion being pivotally connected with the movable platform;

a rotation drive mechanism operable to drive reciprocated rotation of the seat portion relative to the support base; and

a sliding drive mechanism operable to drive the movable platform to slide relative to the support base.

2. The infant chair apparatus according to claim 1, wherein the movable platform includes an axle affixed therewith that extends upright, and a stem pivotally connected with the axle, and the seat portion includes a seat frame that is detachably fastened to the stem vertically above the axle.

3. The infant chair apparatus according to claim 2, wherein an underside of the seat frame is affixed with a sleeve in which the stem is at least partially received.

4. The infant chair apparatus according to claim 3, wherein a lower rim of the sleeve is formed with at least one flange protruding downward, and a lower portion of the stem has at least one slot into which the flange correspondingly engages, the engagement of the flange with the slot rotationally coupling the seat portion with the stem.

5. The infant chair apparatus according to claim 3, wherein the seat portion includes a latch, the stem has an upper end formed with a stud, and the latch engages with the stud when the stem is assembled through an interior of the sleeve.

6. The infant chair apparatus according to claim 5, wherein the stud has a recess into which the latch engages to prevent separation of the seat portion from the stem, and the latch is further connected with a release actuator operable to cause the latch to disengage from the recess.

7. The infant chair apparatus according to claim 5, wherein the latch is spring biased to engage with the stud.

8. The infant chair apparatus according to claim 2, wherein the rotation drive mechanism is carried by the movable platform, and is connected with a lower portion of the stem.

9. The infant chair apparatus according to claim 2, wherein the rotation drive mechanism includes an electric motor, a crank affixed with a rotary shaft that is driven in rotation by the electric motor, and a linking rod having two opposite ends respectively connected pivotally with the crank and the stem.

10. The infant chair apparatus according to claim 9, wherein the rotation drive mechanism further includes a speed reduction mechanism comprised of a train of transmission gears connected with the electric motor and the rotary shaft.

11. The infant chair apparatus according to claim 1, wherein the seat portion is rotatable within an angular range of about 20 degrees to about 80 degrees.

12. The infant chair apparatus according to claim 1, wherein the sliding drive mechanism includes a second electric motor, a second crank affixed with a second rotary shaft that is driven in rotation by the second electric motor, and a second linking rod having two opposite ends respectively connected pivotally with the second crank and an anchor point of the support base.

13. The infant chair apparatus according to claim 12, the sliding drive mechanism further includes a second speed reduction mechanism comprised of a train of second transmission gears connected with the second electric motor and the second rotary shaft.

14. The infant chair apparatus according to claim 12, wherein the second electric motor is carried by the movable platform.

15. The infant chair apparatus according to claim 1, wherein the movable platform is operable to slide along a substantially horizontal plane, and the seat portion is rotatable about a pivot axis that is substantially perpendicular to the plane along which the movable platform slides.

16. An infant chair apparatus comprising:

a support base;

a movable platform assembled with the support base for sliding movement, the movable platform including an axle affixed therewith that extends upright, and a stem pivotally connected with the axle;

a seat portion arranged above the support base, the seat portion being positioned above the axle and fastened to the stem;

a rotation drive mechanism operable to drive reciprocated rotation of the seat portion relative to the support base and the movable platform, wherein the rotation drive mechanism includes a first electric motor, a first crank driven in rotation by the first electric motor, and a first linking rod respectively connected with the first crank and the stem; and

a sliding drive mechanism operable to drive the movable platform to slide relative to the support base, wherein the sliding drive mechanism includes a second electric motor, a second crank driven in rotation by the second electric motor, and a second linking rod respectively connected with the second crank and an anchor point of the support base.

17. The infant chair apparatus according to claim 16, wherein the first and second electric motors are carried by the movable platform.

18. The infant chair apparatus according to claim 16, wherein an underside of the seat frame is affixed with a sleeve to which the stem is detachably fastened.

19. The infant chair apparatus according to claim 18, wherein a lower rim of the sleeve is formed with at least one flange protruding downward, and a lower portion of the stem has at least one slot into which the flange correspondingly engages, the engagement of the flange with the slot rotationally coupling the seat portion with the stem.

20. The infant chair apparatus according to claim 18, wherein the seat portion includes a latch, the stem has an upper end formed with a stud, and the latch engages with the stud when the stem is assembled through an interior of the sleeve.

21. The infant chair apparatus according to claim 18, wherein the stud has a recess into which the latch engages to prevent separation of the seat portion from the stem, and the latch is further connected with a release actuator operable to cause the latch to disengage from the recess.