Implementations of bicycle trailers may include a first end and a second end, the second end opposite the first end, a first plurality of latches coupled to the first end, and a second plurality of latches coupled to the second end. The first plurality of latches may be configured to secure a rear-facing child's car seat facing the first end. The second plurality of latches may be configured to secure the rear-facing child's car seat facing the second end. The second plurality of latches may be configured to secure a front-facing child's car seat facing the first end.

A rolling car seat assembly includes a seat base that is positionable on a vehicle seat. The seat base has a plurality of wheel wells therein. A car seat is provided that has a child seated therein. The car seat is positionable in a seated position or a rolling position. A plurality of rollers is each rotatably coupled to the car seat. Each of the rollers is positioned in a respective one of the wheel wells in the seat base when the car seat is positioned in the seated position. Each of the rollers rolls along a support surface when the car seat is positioned in the rolling position to transport the child without requiring the child to be carried. A handle is slidably coupled to the car seat for gripping to roll the car seat.

A rolling car seat assembly includes a seat base that is positionable on a vehicle seat. The seat base has a plurality of wheel wells therein. A car seat is provided that has a child seated therein. The car seat is positionable in a seated position or a rolling position. A plurality of rollers is each rotatably coupled to the car seat. Each of the rollers is positioned in a respective one of the wheel wells in the seat base when the car seat is positioned in the seated position. Each of the rollers rolls along a support surface when the car seat is positioned in the rolling position to transport the child without requiring the child to be carried. A handle is slidably coupled to the car seat for gripping to roll the car seat.

A foldable personal such as a tricycle which can be convertible into a stroller, is configured for accommodating a child therein and for preventing, when desired, the child from being able to steer the vehicle, vehicle having an operational state and a storage state, in which it can take an extremely compact form. The vehicle has a longitudinal axis lying in its vertical plane of symmetry and having a horizontal reference plane perpendicular to the plane of symmetry, and it takes its compact form in the storage state both in the direction along its longitudinal axis and in the directions perpendicular to this axis both along the plane of symmetry and perpendicular to the plane of symmetry.

A foldable personal such as a tricycle which can be convertible into a stroller, is configured for accommodating a child therein and for preventing, when desired, the child from being able to steer the vehicle, vehicle having an operational state and a storage state, in which it can take an extremely compact form. The vehicle has a longitudinal axis lying in its vertical plane of symmetry and having a horizontal reference plane perpendicular to the plane of symmetry, and it takes its compact form in the storage state both in the direction along its longitudinal axis and in the directions perpendicular to this axis both along the plane of symmetry and perpendicular to the plane of symmetry.

The present invention describes a child carrier and docking assembly adapted to be removably mounted to a bicycle, moped, electric bike or the like, said assembly comprising a child carrier unit which is in the form of a hybrid child seat and stroller possible to connect to a docking unit of the assembly, said docking unit comprising two units, one first unit being an adapter arranged to be fixated to the bicycle, moped, electric bike or the like, and one second unit 2 arranged to be fixated to or integrated into the child carrier unit, wherein the second unit 2 is lockable into and releasable from the first unit 1 so that the child carrier unit is locked to and released from the bicycle, respectively.

A foldable tricycle is provided and has a frame having a first end and a second end, a seat connected to the frame, a front wheel adjacent the first end of the tricycle, and a rear wheel adjacent the second end of the tricycle. A head tube housing is provided adjacent the first end of the main frame, and a fork is provided adjacent the first end of the tricycle. The front wheel is rotatedly secured to the fork. A stem extends from the fork and supports a handlebar, wherein a portion of the head tube housing is slidingly connected to the stem, and wherein the tricycle can be manipulated between a use position and a folded position by sliding a portion of the head tube toward the handlebar.

A tricycle may be operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle. In both such first and second modes, the frame of the tricycle is configured to rotatably support the rear wheels and configured to support the head tube at a distance from the rear wheels such that a distance between the head tube and rear wheels need not necessarily be changed even when the front wheel axis location is changed from one mode to another.

A tricycle may be operable between a first mode of operation steerable by a tricycle rider, and a second mode of operation steerable by an individual pushing the tricycle. In both such first and second modes, the frame of the tricycle is configured to rotatably support the rear wheels and configured to support the head tube at a distance from the rear wheels such that a distance between the head tube and rear wheels need not necessarily be changed even when the front wheel axis location is changed from one mode to another.

Proposed is a baby carriage having improved convenience of use, the baby carriage including a main frame, a seat frame, a storage basket, and a wheel unit, wherein the baby carriage is generally used as a single baby carriage and a seat is detachably coupled to the rear of the single baby carriage such that the single baby carriage is utilized as a twin baby carriage when a second baby is born, and wherein it is possible to carry a pet in the baby carriage irrespective of carrying a baby or an infant in the baby carriage, whereby the baby carriage is used in various forms depending on circumstances of a user or a home.