| 摘要 |
The cylindrical accessory 10 with the head 11 and the cylindrical body 12 are meant to be placed and incorporated into an adequately configurated hole, on a parquet floor. The base is screwed on a rod caulked on the ground under the parquet floor via a metal plug and the inside thread of the through hole 17. In the sequel, the tightening and stabilization of the base on the parquet floor is achieved with special tool through the holes 13,14 of the head 11 and wooden screws traversing the holes 15,16. Finally, a special accessory meant for the fastening of wire ropes required for the correct and safe stabilization of the athletic instruments is screwed at the top portion of the inside thread 17 of the base 10. |
