초록 ▼

A stroller includes a frame and a plurality of hubless wheels. A seat is disposed on the frame. The hubless wheels are disposed on the frame. The hubless wheel includes a rim, an internal sliding structure and at least one bridging component. A tire is disposed on the hubless wheel. The rim has an e

A stroller includes a frame and a plurality of hubless wheels. A seat is disposed on the frame. The hubless wheels are disposed on the frame. The hubless wheel includes a rim, an internal sliding structure and at least one bridging component. A tire is disposed on the hubless wheel. The rim has an external sliding structure on an inner surface of the rim. The internal sliding structure is disposed inside the external sliding structure. The bridging component is disposed between the external sliding structure and the internal sliding structure. The bridging component revolves on its own axis.

대표청구항 ▼

1. A hubless wheel applied to a stroller, the hubless wheel comprising: a rim whereon a tire is disposed, having an external sliding structure on an inner surface of the rim;an internal sliding structure disposed inside the external sliding structure; andat least one bridging component disposed betw

1. A hubless wheel applied to a stroller, the hubless wheel comprising: a rim whereon a tire is disposed, having an external sliding structure on an inner surface of the rim;an internal sliding structure disposed inside the external sliding structure; andat least one bridging component disposed between the external sliding structure and the internal sliding structure, wherein the bridging component is a bearing assembly connected to a frame of the stroller, the bearing assembly comprises: a plurality of shafts rotatably disposed on an inner surface and an outer surface of the internal sliding structure; anda fixing component disposed on the plurality of shafts to fix relative position of the shafts. 2. The hubless wheel of claim 1, wherein the external sliding structure and the internal sliding structure are annular structures contoured to fit the rim. 3. The hubless wheel of claim 1, wherein a radius of the external sliding structure is substantially equal to an amount of a radius of the internal sliding structure and a diameter of the bridging component. 4. The hubless wheel of claim 1, further comprising: a cover disposed on the bridging component and mantling over the external sliding structure and the internal sliding structure. 5. The hubless wheel of claim 1, wherein the hubless wheel further comprises a plurality of bridging components separately disposed between the external sliding structure and the internal sliding structure, a mounting junction of the hubless wheel and a frame of the stroller is disposed over the corresponding bridging component and corresponding position of the internal sliding structure to adjust a height of the mounting junction relative to the ground whereon the stroller is located. 6. The hubless wheel of claim 1, wherein the bridging component is a contoured roller, the internal sliding structure is connected to a frame of the stroller, the contoured roller comprises a first engaging portion, the external sliding structure comprises a second engaging portion, the internal sliding structure comprises a third engaging portion, the second engaging portion and the third engaging portion are simultaneously engaged with opposite sides of the first engaging portion. 7. The hubless wheel of claim 6, wherein the first engaging portion is a concave, and the second engaging portion and the third engaging portion respectively are protrusions matched with the concave. 8. The hubless wheel of claim 1, wherein the internal sliding structure is a T-shaped track integrated with the external sliding structure monolithically, and an upper part of the T-shaped track is buckled by the shafts. 9. The hubless wheel of claim 1, further comprising: an electric generator disposed on the bridging component to create electric power when the hubless wheel moves. 10. A stroller for a child, the stroller comprising: a frame whereon a seat is disposed; anda plurality of hubless wheels disposed on the frame, each hubless wheel comprises: a rim having an external sliding structure on an inner surface, a tire being disposed on an outer surface of the rim;an internal sliding structure disposed inside the external sliding structure; andat least one bridging component disposed between the external sliding structure and the internal sliding structure, wherein the bridging component is a bearing assembly connected to a frame of the stroller, the bearing assembly comprises: a plurality of shafts rotatable disposed on an inner surface and an outer surface of the internal sliding structure; anda fixing component disposed on the plurality of shafts to fix relative position of the shafts. 11. The stroller of claim 10, wherein the external sliding structure and the internal sliding structure are annular structures contoured to fit the rim. 12. The stroller of claim 10, wherein a radius of the external sliding structure is substantially equal to an amount of a radius of the internal sliding structure and a diameter of the bridging component. 13. The stroller of claim 10, wherein the hubless wheel comprises: a cover disposed on the bridging component and mantling over the external sliding structure and the internal sliding structure. 14. The stroller of claim 10, wherein the hubless wheel further comprises a plurality of bridging components separately disposed between the external sliding structure and the internal sliding structure, a mounting junction of the hubless wheel and a frame of the stroller is disposed over the corresponding bridging component and corresponding position of the internal sliding structure to adjust a height of the mounting junction relative to the ground whereon the stroller is located. 15. The stroller of claim 10, wherein the bridging component is a contoured roller, the internal sliding structure is connected to a frame of the stroller, the contoured roller comprises a first engaging portion, the external sliding structure comprises a second engaging portion, the internal sliding structure comprises a third engaging portion, the second engaging portion and the third engaging portion are simultaneously engaged with opposite sides of the first engaging portion. 16. The stroller of claim 15, wherein the first engaging portion is a concave, and the second engaging portion and the third engaging portion respectively are protrusions matched with the concave. 17. The stroller of claim 10, wherein the internal sliding structure is a T-shaped track integrated with the external sliding structure monolithically, and an upper part of the T-shaped track is buckled by the shafts. 18. The stroller of claim 10, wherein the hubless wheel comprises: an electric generator disposed on the bridging component to create electric power when the hubless wheel moves.