| 摘要 |
<p>The spacer is used for making fences and surroundingstructures on building sites by means of ropes or planks. Itattains effective cohesion between the pyramidal part of thesupporting rod and the ground surface and simulataneously reducesthe consumption of material. The spacer is in the form of asupporting rod (1) having cylindrical peripheral surface (2) andpointed lower end (3) in the form of a quadrilateral pyramid. Across-bar (5) is fixed to the upper end (4) of rod (1). Diameter dor cross-bar (5) is smaller than diameter D of rod (1). Thehighest part of cross-bar (5) is fitted lower than the upper frontedge (6) of rod (1).5 claims, 2 figures</p> |
