| 摘要 |
PURPOSE: Hybrid tetrapod is provided to prevent slipping and enable a person to go up the legs of tetrapod to get out of a dangerous place if he falls. CONSTITUTION: A hybrid tetrapod(100) comprises a body(140), and at least four legs(110). The body is located on the center. The legs run from the body toward each vertex of tetrahedron. The leg comprises a vertex and a plurality of protrusions(120). The vertex is formed on a part corresponding to an apex and has a plane. The protrusion is formed to be flat toward the body along an outer circumferential surface(130). Grooves are formed on the top of the protrusion. |
