A handle height adjusting mechanism includes an upper fixing base, a lower fixing base pivoted to the upper fixing base, and an engaging component movably disposed between the upper fixing base and the lower fixing base and for engaging with the upper fixing base and the lower fixing base. The engaging component includes a protrusion. The handle height adjusting mechanism can adjust a handle height and prevent accidental folding operation of a child carrier for enhancing safety. The present application further discloses the child carrier having the handle height adjusting mechanism.

A baby wagon with improved ease of use has a folding structure which is stably configured, and thus damages to frames, such as twisting or bending of the frames, can be prevented, such that the baby wagon is stably folded and unfolded, the use of the baby wagon is convenient while durability of the baby wagon is excellent, and comfort of a baby can be maintained even when the baby is in the baby wagon for a long time. The frames are manufactured so as to be easily folded even in the state in which the canopy is coupled thereto, whereby the baby wagon is unfolded and folded within a short time, such that that portability and mobility of the baby wagon are excellent, and such that detachment and coupling of a canopy and a wheel assembly are easily performed.

A baby wagon with improved ease of use has a folding structure which is stably configured, and thus damages to frames, such as twisting or bending of the frames, can be prevented, such that the baby wagon is stably folded and unfolded, the use of the baby wagon is convenient while durability of the baby wagon is excellent, and comfort of a baby can be maintained even when the baby is in the baby wagon for a long time. The frames are manufactured so as to be easily folded even in the state in which the canopy is coupled thereto, whereby the baby wagon is unfolded and folded within a short time, such that that portability and mobility of the baby wagon are excellent, and such that detachment and coupling of a canopy and a wheel assembly are easily performed.

A pram may be used to transport babies and relatively young infants, and may provide a relatively horizontal surface for the baby or infant to be transported upon in a flat lying position. A pram may also be used to transport relatively older infants, and may provide a seat arrangement for the infant to be transported in a sitting position. However, babies and infants grow quickly and may outgrow conventional prams within a year or two years. Therefore, a parent or guardian must typically provide several prams for their child. Furthermore, a pram offering optimal comfort or safety may not be convenient when travelling or for city living. An aspect of the present disclosure includes a child transportation system comprising a frame 100, wherein the frame 100 is width adjustable between a relatively narrow compact arrangement and a relatively wide comfort arrangement. The frame 100 also includes an infant carrier attachment mechanism 500 configured and arranged to permit, in use, a seat 200 or an infant carrier module 300 to be releasably attached to the frame 100.

A pram may be used to transport babies and relatively young infants, and may provide a relatively horizontal surface for the baby or infant to be transported upon in a flat lying position. A pram may also be used to transport relatively older infants, and may provide a seat arrangement for the infant to be transported in a sitting position. However, babies and infants grow quickly and may outgrow conventional prams within a year or two years. Therefore, a parent or guardian must typically provide several prams for their child. Furthermore, a pram offering optimal comfort or safety may not be convenient when travelling or for city living. An aspect of the present disclosure includes a child transportation system comprising a frame 100, wherein the frame 100 is width adjustable between a relatively narrow compact arrangement and a relatively wide comfort arrangement. The frame 100 also includes an infant carrier attachment mechanism 500 configured and arranged to permit, in use, a seat 200 or an infant carrier module 300 to be releasably attached to the frame 100.

A baby wagon with improved ease of use includes a foldable main body frame, wherein the foldable main body frame includes a front main frame, a rear main frame, and a side frame, the baby wagon being configured such that the structure of the frames is simplified while stability and durability of the babe wagon are guaranteed, whereby the baby wagon is easily carried and stored, such that the number of unnecessary frames is reduced, whereby the overall weight of the baby wagon is reduced and production cost is reduced, and therefore product competitiveness is achieved, such that a change in shape of the baby wagon through folding and unfolding of the baby wagon is easily performed, and such that a canopy, a baby seat, and a tray may be conveniently detachably coupled to the foldable main body frame.

Pram or pram frame, comprising at least one motor, in particular an electric motor, for the assisted driving of the pram or pram frame, a push bar for pushing the pram or pram frame, at least one force sensor device for detecting a direction and/or an amount of a force and/or a force component which acts on the push bar, and/or for detecting a variable derived from this force or force component, in particular a torque and/or a change of the force or force component over time, at least one velocity sensor device for determining a velocity of the pram or pram frame, and at least one control unit, which is configured in such a way that the motor assistance is adapted in dependence on a comparison of the measured force and/or force component and/or the variable derived therefrom to a force threshold value, wherein the force threshold value is established in dependence on a comparison of the measured velocity to a velocity threshold value.

Pram or pram frame, comprising at least one motor, in particular an electric motor, for the assisted driving of the pram or pram frame, a push bar for pushing the pram or pram frame, at least one force sensor device for detecting a direction and/or an amount of a force and/or a force component which acts on the push bar, and/or for detecting a variable derived from this force or force component, in particular a torque and/or a change of the force or force component over time, at least one velocity sensor device for determining a velocity of the pram or pram frame, and at least one control unit, which is configured in such a way that the motor assistance is adapted in dependence on a comparison of the measured force and/or force component and/or the variable derived therefrom to a force threshold value, wherein the force threshold value is established in dependence on a comparison of the measured velocity to a velocity threshold value.

The invention relates to a stroller frame, comprising a sensor unit for capturing sensor data and a drive unit comprised of a computing unit, which is designed to switch the drive unit between a driving state and a non-driving state according to the time curve of the sensor data.

The invention relates to a stroller frame, comprising a sensor unit for capturing sensor data and a drive unit comprised of a computing unit, which is designed to switch the drive unit between a driving state and a non-driving state according to the time curve of the sensor data.