| 摘要 |
PURPOSE: A two stage bicycle rack with a simple structure is provided to improve usable generality and convenience of products by automatically ascending and descending a bicycle with a driving motor. CONSTITUTION: A two stage bicycle rack with a simple structure comprises first and second guides(10,20), first and second pipe bodies(30,40), and a holding unit(50) Both ends of the first and second guides are respectively coupled at the bottom of a supporter and guide grooves are longitudinally formed inside the first and second guides. The first and second pipe bodies are transferred in a longitudinal direction of the guides along the guide grooves. Guide rollers of the first and second pipe bodies are inserted in the guide grooves. A transferring groove is longitudinally formed inside the first pipe body. The second pipe body is transferred back and forth in the longitudinal direction of the first pipe body along the transferring groove of the first pipe body. The holding unit is coupled to the second pipe body and stably fixes a bicycle to conveniently ascend and descend the fixed bicycle. |
