| 摘要 |
The portable folding ramp facilitates transfer of large, heavy objects that cannot be conveniently hand carried up and down inclines (steps, etc.). The portable folding ramp includes one or more ramp members (preferably two, and perhaps three) that attach removably to a folding crossmember. The crossmember includes an elongate slot with a series of short positioning slots extending transversely therefrom. Each ramp member includes a pin at its upper end, with the pin installing removably in the elongate slot. The pin (and its ramp member) is then positioned along the elongate slot to the desired positioning slot to set the lateral spacing between ramps. The apparatus is folded for storage by (a) retracting the telescoping ramp(s), (b) folding the crossmember back upon itself, (c) positioning the ramp(s) attachment(s) at the extreme ends of the crossmember, and (d) pivoting the ramp(s) to align with the crossmember. A storage container is provided. |
| 主权项 |
1. A portable folding ramp, comprising:
a single folding crossmember having a first portion and a second portion joined by a central hinge; the crossmember having a first end, a second end opposite the first end, an upper surface, and a lower surface opposite the upper surface, the crossmember further having an elongate primary slot extending substantially from the first end to the second end thereof along the upper surface and a plurality of ramp positioning slots extending transversely from the primary slot; a pin depending from the first end of the at least one ramp member, the pin selectively installing through the elongate slot and into one of the ramp positioning slots of the crossmember; and at least one ramp member having a first end and a second end opposite the first end, the first end of the at least one ramp member being selectively attached to the crossmember, the at least one ramp member thereby extending from the crossmember. |
