| 摘要 |
<p>The invention relates to a levelling spacer to be positioned under the corners of earthenware or stoneware ceramic tiles, for mounting and glueing them at the same distance and level. According to the invention, the spacer is made of plastic and comprises a circular base () which is peripherally provided with four protuberances () positioned under an angle of 90° in respect of one another, meant to fix the corners of ceramic tiles in rectangular position, in its central part the spacer having an internally threaded orifice () wherein a circular clamping piece () of the same diameter is screwed, this piece being provided on one side with a screw () to be screwed into the orifice () of the spacer, on the other side, the piece having four protuberances () positioned on the circumference, under an angle of 90° in respect of one another, by means of which the clamping piece () is screwed into the spacer.</p> |
