US 5,854,453 A · Sound absorbing body, sound absorbing plate, and sound absorbing unit

Abstract

To provide a sound absorbing structure having a superior sound absorbing characteristic and an external appearance of the sound absorbing structure which does not cause flicker or the like, by disposal, for example, in the front of an air chamber, a plurality of ribs (2a) are disposed on one surface of the sound absorbing board body (2), and a plurality of through-holes (3) are provided in basal portions (2b) between the ribs (2a) to form a porous structure. Concealing materials (5) are provided between the ribs (2a) of the sound absorbing board body to conceal the through-holes (3), respectively.

Claims9

Dependent claims

A sound absorbing body comprising:

a sound absorbing main body formed substantially in the shape of a plate;
a plurality of projecting ribs at predetermined intervals on a front surface side of said sound absorbing main body for reinforcing said sound absorbing main body, each of said ribs having a desired cross-sectional shape;
through-holes formed through said sound absorbing main body from a front surface thereof to to a back surface thereof at respective locations positioned between said ribs;
and
concealing materials disposed between said ribs on the front surface side of said sound absorbing main body and concealing said through-holes;
wherein slits are formed between the concealing materials and said ribs which communicate with said through-holes.

3 more elements

Dependencies are inferred from the claim text.

Sound absorbing body, sound absorbing plate, and sound absorbing unit

Life of this patent

Sound absorbing body, sound absorbing plate, and sound absorbing unit

Life of this patent

Abstract

Claims9