As for this invention, evenness, concretely paralleling to priority direction 34 as the element of sheet condition, the aforementioned core, in element 33 for fixing, to be rigid body entirely in regard to the element 33 for fixing which includes the metal core 18 of the sheet which you can do to corrugated condition as an extending being present, and a principal formative, and permanently to give the property which is deformation possible in the manual operation, the aforementioned core canning by canning 36 and 37. In regard to the element for this fixing, it can direct the ripple mark of the core sheet 18 which you can do to corrugated condition, substantially parallel vis-a-vis priority direction 34, at the same time, means 38 in order release possibly to install and 39, by the fact that it is laid out on element 33 for fixing, extensive use application, are given the element 33 for fixing.本発明は、平坦な、具体的には薄板状の要素として、優先方向34に沿って延在し、そして主要な構成要素として、波形状になされたシートの金属コア18を含む固定用要素33に関し、前記コアは、固定用要素33に、全体的に剛体でありかつ手作業で恒久的に変形可能である特性を与え、前記コアは、被覆36、37によって被覆される。かかる固定用要素に関して、波形状になされたコアシート18の波形が、優先方向34に対して実質的に平行に方向付けられ、かつ、固定用要素33を解放可能に取り付けるための手段38、39が、固定用要素33上に配置されることで、広範な使用用途が、もたされる。
