초록 ▼

A transporter which can be used as an infant car seat or carrier has a body shell with a curved lower surface for use as a rocker and wheels which can be extended for use as a stroller. The wheels are carried on legs which can be retracted into opposed side cheeks by means of respective drive belts.

A transporter which can be used as an infant car seat or carrier has a body shell with a curved lower surface for use as a rocker and wheels which can be extended for use as a stroller. The wheels are carried on legs which can be retracted into opposed side cheeks by means of respective drive belts. A handle 25 is secured to inner members 55 to slide within tubular arms 23 which are pivotally secured to the side cheeks. The inner members are connected by pivotal links to the respective drive belts so that extending or retracting the handle rotates the belts to extend or retract the wheels. Release mechanisms at opposite ends of the handle 25 lock the arms in the retracted position so that the handle can be used to carry the transporter with the wheels retracted. A release handle 31 operates spring-loaded pins to lock the arms 23 in the carrying or pushing positions.

대표청구항 ▼

1. A transporter having a carrying configuration and a mobile configuration, the transporter including:a body shell which includes a base portion and side cheeks on opposite sides of the base portions with a body cavity within the shell; two pairs of legs, one pair of said legs being disposed on eac

1. A transporter having a carrying configuration and a mobile configuration, the transporter including:a body shell which includes a base portion and side cheeks on opposite sides of the base portions with a body cavity within the shell; two pairs of legs, one pair of said legs being disposed on each side of the transporter; a set of four wheels carried by said two pairs of legs which, in said carrying configuration, are retracted into said side cheeks of said body shell; two drive loops, one of said drive loops being disposed on each side of the transporter; a respective slider, to which each of said legs is coupled, secured to one of said drive loops; a respective slideway along which each of said sliders moves; a pair of arms, which are secured proximate the centres of said side cheeks and which, in said carrying configuration, are upstanding from opposite sides of the body shell for use in carrying the transporter; and a handle extending between said pair of arms and operably coupled to said drive loops and the wheels , said coupling being so constructed and arranged that, in converting the transporter into said mobile configuration, the handle is moved relative to the body shell to thereby cause the wheels to extend from the body shell whereby, the transporter is movably supported on the wheels. 2. A transporter according to claim 1, in which the legs move angularly through fixed guides.3. A transporter according to claim 1, in which the handle is coupled to a pair of sliders which are secured to the respective drive loops and move along respective slideways.4. A transporter according to 3, in which said arms are of tubular form and the handle is coupled to each slider via a respective inner member which slides within a respective arm.5. A transporter according to claim 4, in which a link is pivotally connected between each inner member and the respective slider.6. A transporter according to claim 4, in which locking means is provided for fixing each tubular arm in at least two alternate angular positions.7. A transporter according to claim 6, in which each locking means includes a pin which engages in a plate which is fixed with the tubular arm.8. A transporter according to claim 7, n which each pin is retractable against spring means.9. A transporter according to claim 8, in which the pins are retracted by respective bell cranks moved by a common operating member.10. A transporter according to claim 4, in which manually-operable means is provided to prevent the inner member from sliding within the respective arm until said manually-operable means is released.11. A transporter according to claim 10, in which at least one of the inner members is provided with a head unit having a rotatable body, and a link is pivotally connected to the rotatable body offset from its axis of rotation to move a locking pawl within the inner member such that the pawl can move from a projecting position to prevent the inner member from sliding within the tubular arm to a retracted position in which the inner member is permitted to slide within the tubular arm.12. A transporter according to claim 11, in which the rotatable body is provided with a lever arm for rotation thereof.13. A convertible transporter having a carrying configuration and a mobile configuration, the transporter including:a set of wheels; body shell which includes a base portion and side cheeks on opposite sides of the base portion, said body shell forming cavities into which said wheels are retracted in said carrying configuration; a pair of arms which, in said mobile configuration, project rearwardly from opposite sides of said transporter; a handle extending between said pair of arms, such that said handle can be used for pushing the transporter; and an operable coupling between said handle and said wheels so constructed and arranged that, in converting the transporter into said mobile configuration from said carrying configuration, said handle slides away from said body shell, to an extended position, and said wheels extend from said cavities such that said transporter is movably supported on said wheels; wherein said arms are pivotally secured proximate the centres of said side cheeks such that said arms can be rotated from a rearwardly-projecting pushing position to an upright carrying position, enabling said handle to be used for pushing the transporter in said mobile configuration and also for carrying said transporter in said carrying configuration; and said operable coupling between said handle and said wheels, so constructed and arranged, being effective only when said arms are in said upright carrying position, such that transformation from said carrying configuration to said mobile configuration is brought about by sliding the handle upwardly away from said body shell, with said arms in said upright carrying position, and then rotating said arms to said rearwardly-projecting pushing position. 14. A transporter according to claim 13, in which there are four wheels carried by two pairs of legs, one pair on each side of the transporter.15. A transporter according to claim 14 additionally including a pair of drive loops to which the handle is operably coupled, each of said pairs of legs being secured to one of said drive loops.16. A transporter according to claim 15 additionally including a plurality of sliders, said less being coupled to said sliders, and each of said sliders being in turn secured to a respective drive loop and moving along a respective slideway.17. A transporter according to claim 13, in which the bottom surface of the transporter body lies on a convexly curved plane such that the transporter can rock back and forth when stood on a flat surface.18. A transporter according to claim 13, in which locking means is provided for fixing each arm in said rearwardly projecting pushing position and said upright carrying position.19. A transporter according to claim 18, in which each locking means includes a pin which engages in a plate which is fixed with the respective arm.20. A transporter according to claim 19, in which the pin is retractable against spring means.21. A transporter according to claim 20, in which the pins are retracted by respective bell cranks moved by a common operating member.