Compactible stroller

Patent metadata

Field	Value
Publication number	US-9227648-B2
Application number	US-201314049667-A
Country	US
Kind code	B2
Filing date	Oct 9, 2013
Priority date	Oct 9, 2012
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

Abstract

A collapsible stroller includes a mobile base and a juvenile seat coupled to the mobile base. The mobile base includes a foldable frame and wheels.

First claim

The invention claimed is:

1. A compact collapsible stroller comprising
a seat shell configured to receive an infant,
a rolling base including a shell-support frame, and
a shell mount configured to interconnect the seat shell and the rolling base to support the seat shell in a supported position above the rolling base for movement therewith in an expanded use mode associated with the rolling base and to release the seat shell from the supported position to permit separation of the seat shell from the rolling base in a collapsed storage mode associated with the rolling base, wherein the rolling base further includes a front wheel unit mounted on a front end of the shell-support frame for pivotable movement about a front pivot axis between a retracted position arranged to lie under the shell-support frame in the collapsed storage mode of the rolling base and an extended position arranged to extend away from an underside of the shell-support frame to elevate the front end of the shell-support frame above ground underlying the rolling base in the expanded use mode of the rolling base and a rear wheel unit mounted on a rear end of the shell-support frame for pivotable movement about a rear pivot axis between a retracted position arranged to lie under the shell-support frame in the collapsed storage mode of the rolling base and an extended position arranged to extend away from the underside of the shell-support frame to elevate the rear end of the shell-support frame above ground underlying the rolling base in the expanded use mode of the rolling base, and wherein a first front wheel included in the front wheel unit moves rearwardly to lie in close proximity to the rear end of shell-support frame in the collapsed storage mode of the rolling base and a first rear wheel included in the rear wheel unit is arranged to move forward to lie in close proximity to the front end of the shell-support frame in the collapsed storage mode of the rolling base wherein the shell-support frame comprises a central basket-receiving aperture and the stroller comprises a basket configured to mate with the shell-support frame in a stroller mode with the basket extending downwardly through the central basket-receiving aperture toward ground underlying the rolling base.

2. The stroller of claim 1 , wherein the front wheel unit further includes a first front leg having an upper end mounted on the shell-support frame for rotation about the front pivot axis and a lower end coupled to the first front wheel to support the first front wheel for rotation about an axis of rotation, the rear wheel unit further includes a first rear leg having an upper end mounted on the shell-support frame for rotation about the rear pivot axis and a lower end coupled to the first rear wheel to support the first rear wheel for rotation about an axis of rotation, and the first front leg and first rear leg are arranged to lie in side-by-side criss-crossed relation to one another in the collapsed storage mode of the rolling base and in spaced-apart splayed relation to one another to diverge in a direction extending away from the shell-support frame in the expanded use mode of the rolling base.

3. The stroller of claim 2 , wherein each of the first front and rear legs has a curved shape, and a concave edge of the first front leg is arranged to extend between the upper and lower ends of the first front leg and face away from ground underlying the rolling base in the collapsed storage mode of the rolling base and toward the ground underlying the rolling base in the expanded use mode of the rolling base.

4. The stroller of claim 2 , wherein the front wheel unit further includes a second front wheel and a second front leg having an upper end mounted on the shell-support frame for rotation about the front pivot axis and a lower end coupled to the second front wheel to support the first second wheel for rotation about an axis of rotation, the rear wheel unit further includes a second rear wheel and a second rear leg having an upper end mounted on the shell-support frame for rotation about the rear pivot axis and a lower end coupled to the second rear wheel to support the second rear wheel for rotation about an axis of rotation, and the second front leg and second rear leg are arranged to lie in side-by-side criss-crossed relation to one another in the collapsed storage mode of the rolling base and in spaced-apart splayed relation to one another to diverge in a direction extending away from the shell-support frame in the expanded use mode of the rolling base.

5. The stroller of claim 4 , wherein in the collapsed storage mode of the rolling base the first and second rear legs are arranged to lie in laterally spaced-apart relation to one another to locate the first and second front legs in a space provided under the shell-support frame and between the first and second rear legs.

6. The stroller of claim 4 , wherein each of the second front and rear legs has a curved shape, and a concave edge of the second front leg is arranged to extend between the upper and lower ends of the second front leg and face away from ground underlying the rolling base in the collapsed storage mode of the rolling base and toward the ground underlying the rolling base in the expanded use mode of the rolling base.

7. The stroller of claim 2 , wherein the shell-support frame includes a front bar arranged to extend generally along the front pivot axis, a rear bar arranged to extend generally along the rear pivot axis, a first side bar arranged to interconnect companion first ends of each of the front and rear bars, and a second side bar arranged to interconnect companion second ends of each of the front and rear bars.

8. The stroller of claim 7 , wherein the upper end of the first front leg is mounted for pivotable movement about the front pivot axis on a forward end of the first side bar, the upper end of the second front leg is mounted for pivotable movement about the front pivot axis on a forward end of the second side bar, the upper end of the first rear leg is mounted for pivotable movement about the rear pivot axis on an opposite rearward end of the first side bar, and the upper end of the second rear leg is mounted for pivotable movement about the rear pivot axis on an opposite rearward end of the second side bar.

9. The stroller of claim 1 , wherein the stroller further comprises a stroller push handle that is mounted on the seat shell for sliding movement relative to the seat shell between a retracted storage position and an extended use position to provide means for moving a mobile unit including the rolling base and the seat shell along ground underlying the rolling base in the expanded use mode of the rolling base after the seat shell is coupled to the shell mount to support the seat shell on the rolling base and the stroller push handle has been moved relative to the seat shell to assume the extended use position.

10. The stroller of claim 9 , wherein the seat shell includes a seat bottom and a seat back arranged to extend upwardly from the seat bottom and the stroller push handle is mounted for sliding movement on an exterior portion of the seat back.

11. The stroller of claim 9 , wherein the stroller further includes a carry handle mounted separately from the push handle, the carry handle coupled to the seat shell for pivotable movement about a handle pivot axis and to cooperate with the seat shell to form a mobile infant carrier that is separable from the rolling base at least in the collapsed storage mode of the rolling base.

12. The stroller of claim 9 , wherein the stroller push handle includes a laterally extending grip portion, a first arm including an upper portion fixed to a

Assignees

• Cosco Man Inc
• Dorel Juvenile Group Inc

Inventors

• Sundberg Brian C
• Langley Joseph D
• Fritz Ward A

Classifications

• B62B7/12

  convertible, e.g. into children's furniture or toy (children's chairs convertible to pushchairs A47D1/06) · CPC title

• B62B9/20

  Handle bars; Handles · CPC title

• B62B7/08 Primary

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

• B62B2205/12

  Collapsible wheels · CPC title

• B62B3/02

  involving parts being adjustable, collapsible, attachable, detachable or convertible · CPC title