| 摘要 |
The present invention relates to a fixing system for height-adjustable feet, provided with a rubber base, on the bottom of a sheet metal case; it being provided that the bottom of the case is provided with a hole designed to receive, without rotation, a vertical hollow column of a special plastic insert, in which the threaded stem of the foot is screwed to generate the expansion of the lateral walls of the column to prevent the accidental removal from the hole. |
