Abstract: A child tray assembly adapted for a child seat is provided. The child tray assembly includes a first tray slidably disposed on the child seat. The first tray is slidably disposed on the child seat, and the first tray includes a first tray body and at least one sliding track installed on the first tray body. The child tray assembly is versatile and convenient. Furthermore, a multi-function high chair including the aforementioned child tray assembly is provided.

Abstract: A ride-on toy includes a main body having a lower wall and a centered wheel. The centered wheel is rotatably mounted in the main body with a portion of the wheel protruding from the main body through an opening in the lower wall, such that when the ride-on toy is disposed on a flat surface, it can be rocked back and forth relative to an axis defined by the centered wheel. A seat is arranged over the wheel and between two handles of different lengths. Stabilizers are connected to the lower wall at opposite sides of the opening. The centered wheel may be hollow and contain one or more developmental toys.

Abstract: An infant mobility scooter that enables a parent to easily soothe a fussy infant by allowing the infant to move around in a prone position on their own and/or by the parent, including: a base member, wherein the base member includes a top surface, a bottom surface, a left side wall, a right side wall, a front wall, and a rear wall; wherein a front portion of the base member is adapted to accommodate the torso, head and arms of the infant; wherein a rear portion of the base member is adapted to permit the infant's feet to slide thereover and reach a planar surface upon which the scooter is moved; and a plurality of ground engaging wheels secured to the bottom surface of the base member.

Abstract: A sidekick stool is provided, including a frame body, including at least two support portions which are spacingly arranged; a seat body, being disposed on the at least two support portions; and a rail assembly, fixed to the seat body for a receiving unit to slide therein.

Abstract: An embodiment of a support assembly for a grill may include a leg subassembly comprising a first leg and a second leg, a leg subassembly comprising a first leg and a second leg, the first leg defining a retaining aperture, and a rotatable pin collar assembly configured to couple the first leg to the second leg in a slidable and lockable connection, the rotatable pin collar assembly including a spring pin configured to be retained in the retaining aperture at a first longitudinal position on the first leg when the grill is in a standing locked configuration and configured to be positioned at a second longitudinal position on the first leg when the grill is in a collapsed configuration.

Abstract: The present invention relates to a transport system with a fleet of self-driving vehicles for transporting persons and/or parcels within a delimited area, a self-driving vehicle for use within such a transport system and a control method of a transport system with a fleet of self-driving vehicles. In order to create a transport system that facilitates low-cost and individual mobility for persons and/or parcels in city traffic in particular, a vehicle control system is proposed according to the invention with an onboard unit associated with the individual vehicle and a central computer, which is connected to all vehicles of the fleet, wherein the vehicle dynamics of an individual vehicle are regulated by the onboard unit and the navigation as well as the integration of an individual vehicle into the traffic is controlled both by the onboard unit and by the central computer.

Abstract: An apparatus for improving mobility and helping develop back, neck, arm, core and leg muscle strength and coordination is provided. The apparatus may include a body portion comprising a first layer and a second layer and be configured to slide on a floor surface. A method for improving mobility of a user is also provided.

Abstract: An apparatus includes a hard plastic booster seat, a soft foam insert positioned inside the hard plastic booster seat, and a semi-circular tray removeably affixed to an upper channel of a top portion of the hard plastic booster seat, the tray comprising one or more sections configured to be locked separately or in combination into the upper channel with a dual function latch mechanism.

Abstract: A mobility walker includes a framework having a top portion that includes a support rail positioned parallel to the ground surface. The framework has a bottom portion that includes four support rods distributed in a square configuration and includes a plurality of vertical support members extending between the bottom and top portions such that the top portion is supported above the bottom portion. The walker includes a child support portion having a first end coupled to the support rail of the top portion and having a flexible configuration suspended from the top rail, the child support portion defining a pair of leg holes. A plurality of wheel assemblies is releasably coupled to lower ends of vertical support members. Each vertical support member defines a vertical axis oriented at an angle between 70 degrees and 90 degrees and, preferably, between 80 and 90 degrees relative to the ground surface.

Abstract: Embodiments include a gait trainer device with multiple components and capable of being assembled by a user. The gait trainer may include a first side frame disposed diagonally relative to the ground, a second side frame parallel to the first side frame, a leaning cushion disposed at the end of the first side frame and the end of the second side frame and configured to support a user's weight, and a lower c-shaped frame extending perpendicularly from both the first joint and the second joint. These components among others may be assembled to create a gait trainer for use in assisting and increasing mobility.

Abstract: Learn-to-walk system includes a walker having a toddler retainer for retaining a toddler and a substrate support for supporting the toddler retainer on a substrate. The substrate support includes caster assemblies that enable the substrate support to move on the substrate. The toddler retainer rotates relative to the substrate support such that while the substrate support remains in a stationary position, the toddler retainer is rotatable. An elongate armature has a first end region coupled to the toddler retainer or substrate support in a manner to allow swiveling thereof relative to the armature such that the walker is movable into different positions relative to the armature. A second end region of the armature is coupled to an object, so that the substrate support is limited in its movement relative to the object by the armature. The toddler retainer may also be configured to secure to walking wings.

Abstract: A walker incorporates a folding frame with two (2) rear legs, a center frame, and a front base. At the distal end of each rear leg is a wheel and located at the bottom of the front base leg is a pair of wheels secured about an axle. A seat is removably attached to the frame and can also collapse. The walker also incorporates a voice-activation illumination, a pair of hand grips each disposed at the distal ends of the frame, a rear wheel locking mechanism, a mobile telephone charging port, and a plurality of incidental item holding devices.

Abstract: Device for assisting crawling of an infant (2) on a training surface comprising: - a platform (1) comprising a chest supporting surface for supporting a chest of the infant (2) resting on the platform (1) in a prone position, and - rolling elements (9) rotatably mounted on the platform in such a way they can rotate 360 degrees (1) and arranged to be located between the platform (1) and the training surface, wherein the platform (1) is shaped so that, when the rolling elements (9) are in contact with the training surface, the chest supporting surface of the platform (1) is inclined relative to the training surface, so that the pelvis and the legs of the infant (2) are in contact with the training surface.

Abstract: A device assists infants and toddlers while they learn to walk while preventing posture fatigue for the parent or caregiver of the infants and toddlers. The device includes a crossbar for the parent or caregiver to hold on to and two rings for the infants and toddlers to grasp. The rings can adjust in their distance from the crossbar and are attached to the crossbar via a rope or webbing. The device requires no straps or harnesses and is easily collapsible and portable.

Abstract: The present application is directed to a flotation device for use in aquatic physical therapy. The flotation device preferably comprises side portions that wholly or partly surround the user, and permit the user's elbow(s) and/or forearms to rest upon and be supported thereby. The flotation device also preferably has at least one handgrip permitting the user to easily hold onto and be supported by the flotation device. Additionally, the present invention comprises methods of making and using such a flotation device.

Abstract: The present application is directed to a flotation device for use in aquatic physical therapy. The flotation device preferably comprises side portions that wholly or partly surround the user, and permit the user's elbow(s) and/or forearms to rest upon and be supported thereby. The flotation device also preferably has at least one handgrip permitting the user to easily hold onto and be supported by the flotation device. Additionally, the present invention comprises methods of making and using such a flotation device.

Abstract: A foldable stroller includes a stroller frame having two side frame portions, each of which includes a push rod, a leg rod, a pivot joint, and an armrest assembly including an armrest and an armrest folding device. The pivot joint has an upper joint member connected to the push rod, and a lower joint member connected to the leg rod. The armrest folding device includes: a connecting unit connected fixedly to the armrest, connected pivotally to the lower joint member, and having a guide slot formed therethrough; and a guide pin connected to the the upper joint member and extending through the guide slot. When the push rod is rotated relative to the leg rod, the guide pin moves between too opposite ends of the guide slot to thereby rotate the connecting unit relative to the lower leg rod.

Abstract: The invention provides a multifunctional baby walker, which comprises a tray frame, a chassis frame, a supporting frame and roller wheels. The chassis frame comprises two side brackets respectively located at two sides of the baby walker and a front bracket for connecting front ends of the two side brackets. A lower portion of the supporting frame substantially is connected to the middle of the front bracket, the supporting frame has an accommodating space and a handle provided at an upper portion thereof. The baby walker also comprises a seat pocket assembly which comprises a front support rod, a seat pocket slidably connected to the front support rod along the extending direction of the front support rod, and rear support rods at two sides of the baby walker with rear ends respectively rotatably connected to rear portions of the side brackets. The rotation axis of the front support rod relative to the front bracket extends horizontally.

Abstract: The various embodiments herein provide a baby walker with braking mechanism to control a movement of the baby walker from moving into dangerous areas. The baby walker comprises a sensor unit, a wave transmitter system, a braking system and a power supply unit. The sensor unit is configured to sense an obstacle in the way of walker. The wave transmitter system, in communication with the sensor unit, is configured to generate signals on sensing the obstacle. The braking system, in communication with the wave transmitter, is configured to control movement of the walker upon reception of signals from the wave transmitter. The power supply unit is configured to supply electric power to the sensor unit, the wave transceiver the braking system.

Abstract: A juvenile walker includes a seat supported for movement on a movable base. The elevation of the seat can be changed by a caregiver.

Abstract: As one implementation example, an apparatus is described which comprises a base, the base comprising a plurality of wheels which enable the base to be moveable. The apparatus further comprises a frame, wherein the frame is removably engaged with the base, a handle engaged with a top portion or a back side of the frame, an interactive element engaged with at least a front side of the frame, and an attachment means engaged with the back side of the frame, thereby enabling the frame to be engaged with a different apparatus.

Abstract: A push bike includes a frame, two wheel assemblies and two locking assemblies. The frame includes a curved bottom portion. The two wheel assemblies are pivotally connected with two opposite ends of the frame respectively. Each wheel assembly includes at least one wheel being contactable with the ground, and a limiting portion. Each locking assembly disposed in the frame and includes a limiting member abuttable against the limiting portion. Thus, the two wheel assemblies can be pivoted or locked with respect to the frame to cause the curved bottom portion to contact with the ground for rocking.

Abstract: The invention provides a multifunctional baby walker, which comprises a tray frame, a chassis frame, a supporting frame and roller wheels. The chassis frame comprises two side brackets respectively located at two sides of the baby walker and a front bracket for connecting front ends of the two side brackets. A lower portion of the supporting frame substantially is connected to the middle of the front bracket, the supporting frame has an accommodating space and a handle provided at an upper portion thereof. The baby walker also comprises a seat pocket assembly which comprises a front support rod, a seat pocket slidably connected to the front support rod along the extending direction of the front support rod, and rear support rods at two sides of the baby walker with rear ends respectively rotatably connected to rear portions of the side brackets. The rotation axis of the front support rod relative to the front bracket extends horizontally.

Abstract: This invention is a child's detachable-seat ride-on vehicle which can be used in an autonomous mode for infants, thereby providing soothing motion for the child, or, with a different detachable seat, a child-controlled ride-on vehicle for young children that are beyond the infant stage. For the latter, the vehicle can be driven by the child using finger control on a touch screen, or it can operate in an autonomous mode coordinated with displayed material, thereby providing enhanced game or educational experiences.

Abstract: A toddler walker includes a body and at least one wheel. The at least one wheel is coupled with and arranged under the body. Each wheel includes first and second wheel frames. Each wheel frame includes an annular portion and an inner edge forming a central hole. The inner edge is positioned at one side of the annular portion. Each wheel frame further includes an extension portion extending from the inner edge to the annular portion, as well as a plurality of connection posts. The extension portions of the wheel frames face each other. The wheel frames are fastened together to jointly form a wheel-receiving space. A rolling wheel and a plurality of rolling members are received in the wheel-receiving space. The rolling members are rotatably coupled with the connection posts of the wheel frames and abut against an inner circumferential face of the rolling wheel.

Abstract: A juvenile walker includes a rolling base and a child restraint coupled to the rolling base to move therewith. The child restraint is adapted to support a child using the juvenile walker. The rolling base includes a lift carrier and a child-restraint lift coupled to both the child restraint and the lift carrier to vary a height of the child restraint above ground.

Abstract: An infant transport apparatus includes a Bucket assembly, an Insert assembly, and a Ring assembly (i.e. a BIR arrangement). The bucket assembly includes a bucket construction and a handle assembly. The bucket construction includes two bucket-based, leg-receiving apertures adjacent the bucket bottom. The inner bucket surface defines a volumetric space for receiving an infant. The insert assembly includes a liner assembly and a harness assembly. The liner assembly is sized and shaped to fit the inner bucket surface. The harness assembly is removably attached to the bucket assembly and donnable by the infant. The ring assembly includes an upper ring assembly. The bucket assembly is received and supported by the upper ring assembly such that the bucket-based and certain mesh-based leg-receiving apertures of the upper ring assembly are aligned. The bucket assembly is selectively removable from the mesh sack for transporting the infant.

Abstract: A toddler walker includes a body and at least one wheel. The at least one wheel is coupled with and arranged under the body. Each wheel includes first and second wheel frames. Each wheel frame includes an annular portion and an inner edge forming a central hole. The inner edge is positioned at one side of the annular portion. Each wheel frame further includes an extension portion extending from the inner edge to the annular portion, as well as a plurality of connection posts. The extension portions of the wheel frames face each other. The wheel frames are fastened together to jointly form a wheel-receiving space. A rolling wheel and a plurality of rolling members are received in the wheel-receiving space. The rolling members are rotatably coupled with the connection posts of the wheel frames and abut against an inner circumferential face of the rolling wheel.

Abstract: A posterior walker has an anteriorly open, wheeled frame having a transverse posterior structural member, a left and right forearm support member attached to the frame, and adapted to be aligned with the forearms of a user at an angle wherein the user's wrist is lower than the elbow, and left and right hand grips associated with the left and right forearm support member.

Abstract: Described is a mechanism for traveling over carpet and other uneven or resistant surfaces and objects. The mechanism may be used in connection with office chairs, desk chairs, school chairs, dinner table chairs, lounge chairs, shopping carts, and the like. A base assembly includes relatively large spheres of a rigid or pliant material. The spheres operate in any direction with the assistance of a set of bearings. The spheres allow improved operation over surfaces compared to castors and other known mechanisms. The spheres substantial reduce floor wear and provide improved stability.

Abstract: A baby walker is introduced herein. The baby walker includes a base and a pair of shoulder straps. The base is made by flexible materials such as plastics, or the similar materials. In one exemplary embodiment, the base of the baby walker may be packaged in a deflated form, and may be filled with air to form a shape as desired for an operation mode. The baby walker further includes a pair of shoulder straps which are firmly and fixedly attached in a peripheral upper side of the base. When the baby is placed in a central cavity of the base, the pair of the shoulder straps can be placed alongside the two shoulders of the baby. When the baby wears the baby walker and stands up, the whole baby walker is lifted up for a height above the ground level.

Abstract: A scooter 1 is disclosed that may be linked to a child buggy or perambulator 100. A linking mechanism 200 is also disclosed for releasably linking the scooter 1 to the child buggy 100 thereby allowing the scooter 1 to be used as a scooter 1 or instead, to be linked to a buggy 100 and used in a linked configuration. The combination of a child buggy 100 and scooter 1 using the linking mechanism 200 is described along with a method of use of the mechanism 200.

Abstract: A baby walker includes a protective seat unit, a base ring unit, and a plurality of wheel units. The protective seat unit includes a bottom ring, at least one protective ring stacked above the bottom ring, and a seat connected to the protective ring. The bottom ring and the protective ring are inflatable. The base ring unit is detachably disposed under the bottom ring. The base ring unit includes a plurality of bottom rods removably connected to each other, and a plurality of fasteners fastening the bottom rods together. Each of the wheel units is attached to a bottom end of the base ring unit and includes a caster.

Abstract: A multifunctional sponge safety baby walker comprises a body (1) and some support legs (3) located on the bottom of the body (1), wherein the body (1) is made of PU high density foaming material and can be made by molding, a manned hollow structure (2) is provided in the body (1), a cushion (4) for a stretching leg hole (4.1) is provided in the hollow structure (2), and the support legs (3) are slidable. The baby walker can be made into various animals and plants styles and art styles with cartoon child-taste, and also can be used as water recreation articles and building blocks.

Abstract: Various embodiments of the present invention are directed to an adjustable orbital children's walker. According to various embodiments, the children's walker is configured for being adjusted between an orbital movement mode, in which the walker is restricted to movement along an orbital path, and a free movement mode, in which the walker is not restricted to movement along an orbital path. In particular, various embodiments of the children's walker include at least one pivot mechanism configured for being easily adjusted by a user between a first configuration, in which the children's walker is thereby in the orbital movement mode, and a second configuration, in which the children's walker is thereby in the free movement mode.

Abstract: A baby walker with a use-transferable upper tray comprises an upper tray, a base, a pair of side posts and a positioning mechanism. The upper tray is positioned by the positioning mechanism in a first position or a second position and being connected with a seat for accommodating a baby-occupant. The base has a rear opening that permits an elder baby to enter without obstacle to learn walking therein by grabbing the rear end of the upper tray, when the upper tray is moved to a second position from a first position. Each of the pair of side posts is connected between the upper tray and the base for positioning the baby walker in a selected height.

Abstract: A baby walker that allows the baby to walk using his or her own feet in an upright position without having to bend over. This is a baby walker that you don't have to push or sit down inside which stops the baby from running into walls. The baby walker helps keep the childs spine in right alignment and build the legs much faster than conventional walkers. The baby walker is made with two u-shaped swivel caster polyurethane wheels with a 4 inch stem being ½ inches in diameter, which scrolls back and forth on a 5 ft adjustable metal or plastic pole that stands on four 3 ft-6 inch adjustable metal or plastic poles (legs) being ¾ inches in diameter. The baby walker also has one V-shaped hand bar that is 6 inches in length with a 4 inch metal or plastic stem being ½ inches in diameter that attaches to the 4 inch stem of the u-shaped swivel caster polyurethane wheels. This allows the baby to grip the hand bars and walk back and forth.

Abstract: A multi-use child seating apparatus is provided for attachment to a number of frame structures, including a shopping cart, a table, a walker unit, a child activity center, and the like. A seating unit includes a seating frame and a flexible seat for receiving a child in a seated position therein. A mounting mechanism attached to the seating frame is adapted for mounting the seating apparatus to a frame structure, such as the handlebar of a shopping cart, and at least one connector is provided to secure the seating apparatus to the frame structure and brace the seating unit from movement when a child is seated in the flexible seat. A plurality of legs may be movably connected to the seating frame and moved to a deployed position to engage a frame structure, such as a table, to further secure the seating apparatus to the frame structure.

Abstract: An apparatus that combines the functionality of a high chair and a child walker into one integral device is herein disclosed. The frame extends upward using a tubular structure which allows the apparatus to raise from a lower walker height thereto a high chair height. The apparatus provides an interchangeable seat system comprising a textile walker seat and a semi-rigid high chair seat with a footrest. Additionally, the wheels lock into place to prevent the apparatus from rolling about while in the raised high chair position. The overall tray area surrounding the child then serves as a table upon which the child can eat.

Abstract: An adult seat providing an activity and confinement center for individuals suffering from mental impairments. The seat center is comprised of a stationary seat support having a rotatable seat assembly positioned therewith. A removable interlocking tray portion provides for user access and confinement with integrated tray locking and release and seat rotational control enablement therewithin.

Abstract: A baby walker with a use-transferable upper tray comprises an upper tray (2), a base (3), a pair of side posts and a positioning mechanism (7). The upper tray (2) is connected with a seat (21) for accommodating a baby-occupant sitting thereon for feeding foods. The base (3) has a plurality of wheels (31) for contacting the ground, thereby permitting an elder baby to push and move the baby walker (10) easily. Each of the pair of side posts is connected between the upper tray (2) and the base (3) for positioning the baby walker (10) in a selected height. The positioning mechanism (7) is capable of positioning the upper tray (2) relative to the base (3) in a first position (71) and a second position (72), wherein the second position (72) is forward relative to the first position (71), when the upper tray in positioned in the second position (72), allowing the elder baby to enter and learning walk inside an opening space inside the base (3) by grabbing the rear end of the upper stay (2).

Abstract: An infant crawler includes a cover which can take many shapes, such as an animal shape or vehicle shape, secured to a wheeled crawler frame. The crawler frame can be moved around by an infant positioned in the crawler frame and the cover at least partially covers the infant positioned in the frame. The cover can include various pieces secured to various parts of the frame or can be or include a single piece removably secured to the frame. The crawler frame can be collapsible for easy transport and storage and can have a body supporting surface adjustable in height above the floor so can be adjusted for the particular user and for a particular user as the user grows to support the user at a proper height above the floor for the desired crawling action. In addition, the crawler frame can be length adjustable for adjustment as the user grows.

Abstract: This invention relates to a folding structure for carrier's handlebar, wherein it essentially comprises: a first joint (2) fixed in the front end of a carrier body (1) and having positioning teeth (25) formed on the sidewall in the interior thereof, and a second joint (3) pivotally provided in the first joint (2); a rail block (33) being fixed in the interior of the second joint (3), the rail block (33) being formed with a sliding rail (331), a slider (34) being formed in the sliding rail (331), occluding teeth (341) being formed on the bottom end of the slider (34) to mesh with the positioning teeth (25) of the first joint (2), a wire body (35) and an elastic member (36) being provided on the top end of the slider (34), and a dragon head handlebar (12) being provided on the second joint (3). In this manner, it is convenient for user to adjust the angle of the dragon head handlebar.

Abstract: A height adjustment mechanism for baby walkers includes a locating member disposed on the bottom of a top plate of a main body, a first side bar and a second side bar crossed pivoted with each other, and a movable control member arranged at the bottom end of the locating member and also connected with the first side bar. The locating member and a connection plate are respectively disposed with a locking part and at least one adjustment member, corresponding to each other. The control member is pivoted with a protection cover and a control button is disposed on the front side of the control member while a stopping part is arranged projectingly at the front end of the control button for stopping the protection cover and fixing the control member.

Abstract: A baby walker is disclosed, comprising a base, having an adjustable link at each of its two laterals and a plurality of rollers at its bottom; and a surround, having two regulators sustained by the top ends of the adjustable links, where the two regulators are adjusted until a width is reached to accommodate each riding infant child, and some fixing members are used to encircle the child for holding his/her body, which is just like holding by somebody's hands, where the child's weight is fully sustained and his/her body is kept in a balanced gesture, which brings about good sense of security and comfort to the child whenever he/she is learning to walk.

Abstract: This invention relates to base structure of baby walker which essentially has a base body in C shape, both sides of which are provided with guiding grooves opposite to each other. Rails are formed respectively on both sides at the front ends of the guiding grooves, and openings are respectively formed on both sides at the front ends of the rails. A pivot mount portion is provided on rear end of each guiding groove. A foldable leg unit is provided on the base body, which has two support rods pivotably connected in crossover shape, a cylindrical combining part is provided outwardly on both sides at the bottom end of each support rod. The combining part of the rear support rod is mounted on the pivot mount portion, while the combining part of the front support rod is mounted on the rail through the opening so as to slide thereon. Excellent stability can be achieved when the combining parts of the support rods slide along the rails.

Abstract: A child walker is provided that includes a frame having a plurality of wheels. The walker includes a handle that is positionable in a first position and a second position. A seat is attached to the frame when the handle is in the first position. When the handle is in the second position, it is positioned to be gripped by a standing child.

Abstract: An activity walker has three wheeled legs positioned about an adjustable trunk surround member. The trunk surround member is hinged to open and is curved to approximate a users oval-shaped midriff. An adjustable closure on the torso/trunk surround member compensates for users of various girths. A flexible sling support extends across the interior of the surround member from its rear portion to its front portion, with fixed rearward attachments and a releasable front attachment to the interior of the surround member. This sling support is shaped to pass between a user's legs and provides body/trunk support when the user is standing upright. A length of each leg may be adjustable. The lateral extension of each leg outwardly from the surround member may be adjustable to reconfigure the stance/footprint of the walker. A friction pin may be utilized to adjust the rolling rate of each wheel.

Abstract: A baby walker which can also be used as a walk-helper. In this baby walker, a mobile frame with its rear side as an open-end is pivotally supported by foldable leg units supported on the upper end of a base. A support frame with its one end also as an open-end is so disposed that its open-end is oriented to the front end of the mobile frame. The support frame is positioned on the mobile frame by interlinking engagement such that an accommodation space is formed between the mobile frame and the support frame for the assembly with a seat frame. When the seat frame is removed first and the support frame is positioned on the mobile frame by interlinking engagement with the opened end of the support frame to be oriented to the rear end of the mobile frame, the baby walker is transformed to be a walk-helper.

Abstract: A stroller includes at least one adapter, by which a first child seat is configured to be detachably connected to the stroller. The stroller further includes at least one connecting piece, by which a second child seat is configured to be detachably connected to the stroller. The at least one adapter is movable from at least a first position, in which the first child seat is configured to be detachably connected to the adapter, to at least a second position connected to the stroller, in which the second child seat is configured to be detachably connected to the connecting piece.