Child restraint

1 . A child restraint comprising

a seat base adapted to be secured to a vehicle seat, the seat base comprising a seat-base foundation formed to include a vehicle seatbelt path and a vehicle seatbelt retainer coupled to the seat-base foundation and configured to pivot between a released position spaced away from the vehicle seatbelt path and a clamped position overlying the vehicle seatbelt path to clamp a vehicle seat belt to the seat-base foundation to secure the seat base to the vehicle seat,

a juvenile seat configured to be installed on the seat base and movable relative to the seat base between a use position in which the juvenile seat is installed on the seat base, and a base-installation position, in which the juvenile seat is separated from the seat base, and

a seat connection system configured to maintain connection between the juvenile seat and the seat base, the seat connection system including a seat lock and a tool configured to engage with the seat lock to change the seat lock from a locked state blocking separation of the juvenile seat from the seat base and an unlocked state where the juvenile seat is free to separate from the seat base,

wherein at least one of the seat base and the juvenile seat is formed to include an aperture leading to the seat lock and the tool includes a key configured to be inserted into the aperture and rotated within the aperture to change the seat lock from the locked state to the unlocked state, and

wherein the seat lock automatically assumes the locked state when the juvenile seat is installed on the seat base in the use position.

2 . The child restraint of claim 1 , wherein the seat base further includes a seat-orientation controller coupled to the seat-base foundation and wherein the juvenile seat is configured to attach to the seat-orientation controller to move with the seat-orientation controller relative to the seat-base foundation and the vehicle seatbelt retainer about a vertical rotation axis.

3 . A child restraint comprising

a seat base adapted to be secured to a vehicle seat, the seat base comprising a seat-base foundation formed to include a vehicle seatbelt path and a vehicle seatbelt retainer coupled to the seat-base foundation and configured to pivot between a released position spaced away from the vehicle seatbelt path and a clamped position overlying the vehicle seatbelt path to clamp a vehicle seat belt to the seat-base foundation to secure the seat base to the vehicle seat,

a juvenile seat configured to be installed on the seat base and movable relative to the seat base between a use position in which the juvenile seat is installed on the seat base, and a base-installation position, in which the juvenile seat is separated from the seat base, and

a seat connection system configured to maintain connection between the juvenile seat and the seat base, the seat connection system including a seat lock and a tool configured to engage with the seat lock to change the seat lock from a locked state blocking separation of the juvenile seat from the seat base and an unlocked state where the juvenile seat is free to separate from the seat base,

wherein at least one of the seat base and the juvenile seat is formed to include an aperture leading to the seat lock and the tool includes a key configured to be inserted into the aperture and rotated within the aperture to change the seat lock from the locked state to the unlocked state, and

wherein the seat base further includes a seat-orientation controller coupled to the seat-base foundation and wherein the juvenile seat is configured to attach to the seat-orientation controller to move with the seat-orientation controller relative to the seat-base foundation and the vehicle seatbelt retainer about a vertical rotation axis.

4 . The child restraint of claim 3 , wherein the aperture is formed in a seat bottom of the juvenile seat in proximity to the seat-orientation controller when the juvenile seat is in the use position.

5 . The child restraint of claim 3 , wherein the seat base is formed to include the aperture leading to the seat lock.

6 . The child restraint of claim 5 , wherein the seat lock automatically assumes the locked state when the juvenile seat is installed on the seat base in the use position.

7 . A child restraint comprising

a seat base adapted to be secured to a vehicle seat, the seat base comprising a seat-base foundation formed to include a vehicle seatbelt path and a vehicle seatbelt retainer coupled to the seat-base foundation and configured to pivot between a released position spaced away from the vehicle seatbelt path and a clamped position overlying the vehicle seatbelt path to clamp a vehicle seat belt to the seat-base foundation to secure the seat base to the vehicle seat,

a juvenile seat configured to be installed on the seat base and movable relative to the seat base between a use position in which the juvenile seat is installed on the seat base, and a base-installation position, in which the juvenile seat is separated from the seat base, and

a seat connection system configured to maintain connection between the juvenile seat and the seat base, the seat connection system including a seat lock and a tool configured to engage with the seat lock to change the seat lock from a locked state blocking separation of the juvenile seat from the seat base and an unlocked state where the juvenile seat is free to separate from the seat base,

wherein at least one of the seat base and the juvenile seat is formed to include an aperture leading to the seat lock and the tool is configured to be inserted into the aperture to change the seat lock from the locked state to the unlocked state, and

wherein the seat lock automatically assumes the locked state when the juvenile seat is installed on the seat base in the use position.

8 . The child restraint of claim 7 , wherein the seat base further includes a seat-orientation controller coupled to the seat-base foundation and wherein the juvenile seat is configured to attach to the seat-orientation controller to move with the seat-orientation controller relative to the seat-base foundation and the vehicle seatbelt retainer about a vertical rotation axis.

9 . The child restraint of claim 8 , wherein the aperture is formed in a seat bottom of the juvenile seat in proximity to the seat-orientation controller when the juvenile seat is in the use position.

10 . The child restraint of claim 7 , wherein the seat base is formed to include the aperture leading to the seat lock.

11 . The child restraint of claim 10 , wherein the aperture is located at a front end of the seat base.