A seat includes a seat plate, a first backrest support member, a second backrest support member, a third backrest support member, a first sliding sleeve and a second sliding sleeve. The second backrest support member is telescopically connected to the first backrest support member. The third backrest support member is telescopically connected to the second backrest support member and pivotally connected to the seat plate. The first sliding sleeve is disposed on the first backrest support member. The second sliding sleeve is disposed on the second backrest support member. The first backrest support member, the second backrest support member and the third backrest support member are able to slide with respect to each other to be folded or unfolded. The first sliding sleeve slides as the first backrest support member slides, and the second sliding sleeve slides as the second backrest support member slides.

The invention relates to a stroller comprising a stroller chassis and a child receiving device for receiving at least one child. The child receiving device can be oriented in at least two different orientations, in particular a forwards orientation and a rearwards orientation, relative to the stroller chassis, wherein at least one receiving section of the child receiving device is movable, in particular at least partly pivotal, such that at least one first and second setting of the child receiving device can be set, and a coupling device is provided and designed such that a conversion from at least one first orientation of the child receiving device to a second orientation is blocked in at least one first setting of the child receiving device.

The invention relates to a stroller comprising a stroller chassis and a child receiving device for receiving at least one child. The child receiving device can be oriented in at least two different orientations, in particular a forwards orientation and a rearwards orientation, relative to the stroller chassis, wherein at least one receiving section of the child receiving device is movable, in particular at least partly pivotal, such that at least one first and second setting of the child receiving device can be set, and a coupling device is provided and designed such that a conversion from at least one first orientation of the child receiving device to a second orientation is blocked in at least one first setting of the child receiving device.

A dolly assembly includes a parent dolly including a support frame that defines a truck-receiving volume. A child dolly includes a support frame that is sized to be received within the truck-receiving volume. The child dolly includes a child dolly carousel. The parent dolly and the child dolly together include a locking assembly including a locking arm that prevents rotation of the child dolly carousel in a locked position.

A fastening apparatus includes: a base having a first sliding groove; a rotation member pivotally connected to the base and having at least two locking states, the rotation member has a second sliding groove; a locking member having a locked state and an unlocked state, in the locked state, the rotation member is located in both the first sliding groove and the second sliding groove; in the unlocked state, the locking member is withdrawn from the first sliding groove or the second sliding groove to allow the rotation member to rotate relative to the base; an elastic element configured to maintain the locking member in the locked state; and a releasing member configured to drive the locking member to move against an elastic force of the elastic element, such that the locking member is switched from the locked state to the unlocked state.

A fastening apparatus includes: a base having a first sliding groove; a rotation member pivotally connected to the base and having at least two locking states, the rotation member has a second sliding groove; a locking member having a locked state and an unlocked state, in the locked state, the rotation member is located in both the first sliding groove and the second sliding groove; in the unlocked state, the locking member is withdrawn from the first sliding groove or the second sliding groove to allow the rotation member to rotate relative to the base; an elastic element configured to maintain the locking member in the locked state; and a releasing member configured to drive the locking member to move against an elastic force of the elastic element, such that the locking member is switched from the locked state to the unlocked state.

Embodiments include strollers having removable seats. An example stroller may include rear wheels, front wheels, and a frame including a handle portion, a rear wheel support portion, a front wheel support portion and a folding mechanism connecting the front wheel support portion and the handle portion in both an unfolded configuration and in a folded configuration. The frame may include a stroller seat support portion positioned at a first vertical position adjacent the handle portion, and a front seat attachment configured for attachment to the front wheel support portion at a second vertical position substantially lower than the first vertical position. The front seat attachment may be configured to support the front stroller seat substantially over the front wheels so that a center of gravity of the stroller system is between the front wheels and the rear wheels.

Embodiments include strollers having removable seats. An example stroller may include rear wheels, front wheels, and a frame including a handle portion, a rear wheel support portion, a front wheel support portion and a folding mechanism connecting the front wheel support portion and the handle portion in both an unfolded configuration and in a folded configuration. The frame may include a stroller seat support portion positioned at a first vertical position adjacent the handle portion, and a front seat attachment configured for attachment to the front wheel support portion at a second vertical position substantially lower than the first vertical position. The front seat attachment may be configured to support the front stroller seat substantially over the front wheels so that a center of gravity of the stroller system is between the front wheels and the rear wheels.

Foldable strollers with removable seats and related methods are disclosed herein. An example stroller disclosed herein a wheeled frame, a receiver coupled to the frame, and a seat. The seat includes a mount, a lock disposed in the mount; and a handle having an extended positon and a retracted position relative to the seat. The lock is to move from a first position to a second position when the mount is disposed in the receiver to removably couple the seat to the frame, and the lock to move from the second position to the first position to release the seat from the receiver when the handle moves from the retracted position to the extended position.

Foldable strollers with removable seats and related methods are disclosed herein. An example stroller disclosed herein a wheeled frame, a receiver coupled to the frame, and a seat. The seat includes a mount, a lock disposed in the mount; and a handle having an extended positon and a retracted position relative to the seat. The lock is to move from a first position to a second position when the mount is disposed in the receiver to removably couple the seat to the frame, and the lock to move from the second position to the first position to release the seat from the receiver when the handle moves from the retracted position to the extended position.