| 摘要 |
PROBLEM TO BE SOLVED: To provide a lift type upper and lower two-stage bicycle parking device capable of performing attaching and changing work of a constant load spring very easily.SOLUTION: In a lift-type upper and lower two-stage bicycle parking device having an upper-stage accommodation part and a lower-stage accommodation part, the upper-stage accommodation part comprises: a columnar support which is formed into a hollow shape and has a slit extending in a vertical direction at one side face; a lift body which can be elevated and lowered along the columnar support; traction means which imparts tension in an upper direction with respect to the lift body; and a bicycle placing table whose front end is attached to the lift body. The lift body and the traction means are arranged in a hollow part of the columnar support, the traction means is constituted of a pair of right and left constant force springs arranged while interposing the slit therebetween, the constant force springs include winding cores arranged in an upper position in the columnar support, and band-shaped plates the upper ends of which are fixed to the winding cores, and which extend in the vertical direction. Lower ends of the band-shaped plates and the lift body are connected to each other by detachable connection means.SELECTED DRAWING: Figure 3 |
