High-damping absorbing coating
View Patent ↗The present invention relates to an absorbent covering having high damping power, the covering being secured to a structure ( 20 ) and being provided with an absorbent layer ( 10 ) of elastic material ( 4 ). Remarkably, said absorbent layer ( 10 ) comprises a dissipater mesh arranged in the elastic material ( 4 ) and constituted by a plurality of nodes ( 2 ) and of dissipater elements ( 1 ), which dissipater elements are advantageously elliptical in shape.
1. An absorbent covering having high damping power, said covering being secured to a structure and including an absorbent layer, said absorbent layer comprising:
an elastic material; and
a dissipater mesh arranged in said elastic material, said dissipater mesh comprising a plurality of dissipater elements and a plurality of nodes connecting respective ones of said dissipater elements, said dissipater elements each having a shape of an ellipse.
2. The covering according to claim 1 , wherein bottom ends of said nodes extend beyond said absorbent layer so that the absorbent layer is spaced apart from said structure, said absorbent layer being secured to said structure solely via the nodes.
3. The covering according to claim 1 , wherein bottom faces of said bottom ends are covered in a self-adhesive material.
4. The covering according to claim 1 , wherein said elastic material is made of elastomer.
5. The covering according to claim 1 , wherein said elastic material further includes a plurality of recesses.
6. The covering according to claim 1 , wherein said dissipater mesh has a repeated square pattern.
7. The covering according to claim 1 , wherein said dissipater mesh has a repeated triangular pattern.
8. The covering according to claim 1 , wherein said ellipse is connected to two nodes located at the points of intersection between the periphery of the ellipse and its major axis.
9. The covering according to claim 1 , including a rigid backing plate, said absorbent layer then being arranged between said structure and said rigid backing plate.
10. The covering according to claim 9 , including an elastic backing plate disposed between said rigid backing plate and said absorbent layer.
11. The covering according to claim 1 , wherein said elastic material and said dissipater elements are identical in height.
12. The covering according to claim 1 , wherein said dissipative mesh is machined as a single piece from a single block of deformable material.
13. The covering according to claim 1 , wherein said dissipative mesh is obtained by molding a one-piece block of deformable material.