Foldable stroller

Patent metadata

Field	Value
Publication number	US-9884640-B2
Application number	US-201615134391-A
Country	US
Kind code	B2
Filing date	Apr 21, 2016
Priority date	Apr 23, 2015
Publication date	Feb 6, 2018
Grant date	Feb 6, 2018

Abstract

A foldable stroller includes a frame and a locking component. The frame includes a handle, a front foot, a rear foot, and a carrier support. An upper end of the front foot is pivoted to the handle. An upper end of the rear foot is pivoted to the handle. The carrier support includes at least one connecting rod. An end of the at least one connecting rod is pivoted to the front foot, and the other end of the at least one connecting rod is pivoted to the rear foot. The locking component is installed between the rear foot and the handle. The locking component locks rotation of the rear foot relative to the handle when the foldable stroller is unfolded. Due to aforementioned structure, the foldable stroller is not only reliable in operation but also has a smaller occupied space after being folded.

First claim

What is claimed is:

1. A foldable stroller comprising:
a frame comprising:
a handle;
a front foot, an upper end of the front foot being pivoted to the handle by two first pivoting shafts;
a rear foot, an upper end of the rear foot being pivoted to the handle by two second pivoting shafts different from the two first pivoting shafts; and
a carrier support comprising:
at least one connecting rod, an end of the at least one connecting rod being pivoted to the front foot, and the other end of the at least one connecting rod being pivoted to the rear foot; and

a locking component installed between the rear foot and the handle, the locking component locking rotation of the rear foot relative to the handle when the foldable stroller is unfolded.

2. The foldable stroller of claim 1 , further comprising a seat, the frame further comprising a fixing base installed on the front foot, the seat being installed on the fixing base forwardly or rearwardly, and the seat is foldable along with the frame when the foldable stroller is folded.

3. The foldable stroller of claim 2 , wherein the fixing base is rotatably installed on the front foot, the frame further comprises an engaging assembly for locking rotation of the fixing base relative to the front foot, and when the seat is installed on the fixing base rearwardly and the foldable stroller is folded, the engaging assembly is operated to release the fixing base and the front foot, so that the seat is rotatably folded along with the frame.

4. The foldable stroller of claim 3 , wherein a positioning hole is formed on the fixing base, and the engaging assembly comprises:
a fixing component fixed on the front foot; and
a protruding block disposed on the fixing component;
wherein the fixing base is not rotatable relative to the front foot when the protruding block engages with the positioning hole.

5. The foldable stroller of claim 4 , wherein the engaging assembly further comprises an installing plate disposed on a lower end of the fixing base, the positioning hole is formed on the installing plate, and the protruding block is a hemispherical block.

6. The foldable stroller of claim 2 , wherein the fixing base is installed at a joint of the carrier support and the front foot.

7. The foldable stroller of claim 1 , wherein the handle comprises a handling portion and two installing rods connected to the handling portion and spaced from each other, the front foot comprises two front supporting rods corresponding to the two installing rods and space from each other, the rear foot comprises two rear supporting rods corresponding to the two installing rods and space from each other, an upper end of each of the two front supporting rods is pivoted to an end of the corresponding installing rod, and an upper end of each of the two rear supporting rods is pivoted to a middle portion of the corresponding installing rod.

8. The foldable stroller of claim 7 , wherein the front foot further comprises a front linking rod connected between two lower ends of the two front supporting rods.

9. The foldable stroller of claim 7 , wherein the carrier support comprises two connecting rods spaced from each other, the carrier support further comprises a middle linking rod connected between rear ends of the two connecting rods, a front end of each of the two connecting rods is pivoted to a middle portion of the corresponding front supporting rod, and the rear end of each of the two connecting rods is pivoted to a middle portion of the corresponding rear supporting rod.

10. The foldable stroller of claim 7 , wherein two ends of the handling portion are connected to ends of the two installing rods respectively.

11. The foldable stroller of claim 1 , wherein the locking component comprises:
a circular locking disc disposed on the handle;
a rotating disc disposed on the rear foot, the rotating disc being rotatably installed on the handle and opposite to the circular locking disc; and
a locking gear installed between the circular locking disc and the rotating disc, each of the circular locking disc and the rotating disc having an internal gear corresponding to the locking gear, the locking gear engaging with both of the two internal gears of the circular locking disc and the rotating disc to lock the rotation of the rear foot relative to the handle, and the locking gear disengaging from the internal gear of the rotating disc to release the rotation of the rear foot relative to the handle.

12. The foldable stroller of claim 11 , wherein the locking component further comprises a resilient member and an operating portion, the resilient member abuts between the circular locking disc and the locking gear, the operating portion is installed on an outer surface of the rotating disc, the operating portion comprises a plurality of abutting protrusions, a plurality of through holes are formed on the rotating disc for allowing the plurality of abutting protrusions to pass through, and the plurality of abutting protrusions push the locking gear to disengage from the internal gear of the rotating disc when the operating portion is pressed.

13. The foldable stroller of claim 11 , wherein the locking gear comprises a plurality of teeth with different sizes or different space widths, and when the frame is unfolded, the plurality of teeth of the locking gear mate with a plurality of teeth of the internal gear of the rotating disc, so that the locking gear is movable between the circular locking disc and the rotating disc.

14. The foldable stroller of claim 1 , further comprising:
two front wheels installed on a lower end of the front foot; and
two rear wheels installed on a lower end of the rear foot.

Assignees

• Wonderland Nursery Goods
• Wonderland Switzerland Ag

Inventors

• Li jian qun

Classifications

• B62B2205/24

  to hold in the folded position · CPC title

• B62B7/147

  rotatable as a whole to transform from seating to lying · CPC title

• B62B7/08 Primary

  in the direction of, or at right angles to, the wheel axis · CPC title

• B62B7/145

  the body being a rigid seat, e.g. a shell · CPC title

• B62B7/064

  the handle bar being parallel to the front leg · CPC title