Wheeled luggage case
A wheeled luggage case comprises (a) a storage chamber, (b) a cover defining an opening on at least one side of the storage chamber for providing ready access therein and at least two labyrinth axle-free wheels operatively connected to the chamber for towing the case along a ground surface. The labyrinth axle-free wheel comprises an internal rim, an external rim provided with a ground interface, rollers being rotatably disposed within a roller spacer between the internal and external rims in a uniform circumferential manner by means of a spacer and external covers. A labyrinth type dust passage in the wheel is defined by the rims and the external plates mechanically connected to the internal rim.
1. A labyrinth axle-free wheel; said wheel comprising
a. an internal rim including a plurality of circumferentially distributed first dust chambers;
b. an external rim provided with a ground interface and including a plurality of circumferentially distributed second dust chambers;
c. rollers being rotatably disposed within a roller spacer between said internal and external rims in a uniform circumferential manner by means of a spacer having two side planar annular members provided with a plurality of circumferentially distributed third dust chambers;
d. external covers provided with a plurality of circumferentially distributed fourth dust chambers;
e. wherein said axle-free wheel comprises a labyrinth type dust passage defined by the internal rim, the external rim, the two side planar annular members, and the external covers mechanically connected to said internal rim.
2. A wheeled luggage case comprising:
a. a storage chamber;
b. a cover defining an opening on at least one side of said storage chamber for providing ready access therein; and
c. at least two labyrinth axle-free wheels of claim 1 operatively connected to said chamber for towing said case along a ground surface.
3. The case according to claim 2 , wherein said case comprises an embedded control unit configured for controlling charging of a battery and wherein said case further comprises an internal compartment configured for accommodating said battery therewithin.
4. The case according to claim 3 , further comprising a display configured to display parameters controlled by said control unit.
5. The case according to claim 3 , wherein said control unit comprises a component selected from the group consisting of a GPS chip, RFID chip, a USB interface and any combination thereof.
6. The case according to claim 2 , wherein said case comprises a telescopically protrudable handle and said telescopically protrudable handle is radially configured.
7. The case according to claim 2 comprising expanding means configured for gaining a volume of said case.
8. The case according to claim 7 , wherein said expanding means is selected from the group consisting of a telescopic member embedded into said frame, a spring-loaded member, a zipper and any combination thereof.
9. The case according to claim 2 comprising at least one internal compartment configured for accommodating a specific kind of articles.
10. The case according to claim 2 comprising at least one adjustable connection means configured for holding user's articles within said compartment.
11. The case according to claim 2 comprising an adapter for towing by means of a bicycle.
12. The case according to claim 11 , wherein said case comprises a telescopically protrudable handle and wherein said adapter comprises a clamp embracing a frame of said bicycle, a clamp embracing said telescopically protrudable handle and a rigid link therebetween.
13. The case according to claim 2 , further comprising a chargeable internal battery.
14. The case according to claim 13 , further comprising an electric generator kinematically linked to at least one of said wheels and configured for charging the chargeable internal battery.
15. The case according to claim 2 , further comprising an electric generator kinematically linked to at least one of said wheels and configured for energizing a load connectable to said generator.
16. The case according to claim 2 , further comprising at least one light.
17. The case according to claim 16 , wherein said chamber is made of a translucent material and the at least one light is configured for changing a color of said case.
18. A wheeled luggage case, comprising:
a. a storage chamber;
b. a cover defining an opening on at least one side of said storage chamber for providing ready access therein; and
c. at least two labyrinth axle-free wheels operatively connected to said chamber for towing said case along a ground surface, each of the at least two labyrinth axle-free wheels comprising:
an internal rim,
an external rim provided with a ground interface,
rollers being rotatably disposed within a roller spacer between said internal and external rims in a uniform circumferential manner by means of a spacer, and
external covers,
wherein said axle-free wheel comprises a labyrinth type dust passage defined by said rims and said external plates mechanically connected to said internal rim,
wherein said two labyrinth axle-free wheels are mounted flush with side wall of said case,
wherein each of said labyrinth axle-free wheels is provided with a deploying mechanism having a collapsed position and a deployed position, and
wherein said deploying mechanism comprises an annular member configured for attaching said labyrinth axle-free wheel and lever arms hingedly interconnecting said member and said side wall of said case.
19. The case according to claim 18 , wherein said lever arms have a first steady position parallel to said side wall of said case and a second steady position in which said arms are rotated by an obtuse angle with said first position.