Noise absorbing device

A noise absorbing device comprising a pair of core pieces formed by dividing a cylindrical magnetic core into halves by a dividing plane including a cylindrical center axis, said core being adapted to receive therethrough an extension of a cable connected to an electronic apparatus,

• and a pair of holder segments having openings and receiving said pair of core pieces in core receiving recesses thereof, said pair of holder segments being coupled to each other to enable abutting contact with each other and adapted to be closed together with their openings faced to each other so that said pair of core pieces form a cylindrical core shape with said cable extending therethrough;
• wherein each of said core pieces have a configuration and a size including an axial core length smaller than each of said core receiving recesses, each of said core pieces being provided with a pair of lip portions including lip surfaces determined by said dividing plane and with an inner surface connecting between said lip surfaces in which inner surface a pair of engaging recesses are formed at peripheries of opposite end portions of each of the core pieces;
• wherein each of said holder segments have opposite end walls disposed along said cylindrical central axis and a pair of engaging holes formed in said opposite end walls adjacent its bottom;
• wherein elastic pieces are fixed in said core receiving recesses of said pair of holder segments and to hold and to prevent said core pieces from falling out of said core receiving recesses, respectively,
• wherein each of said elastic pieces is made of a deformable elastic material comprising a strip body which has at least one curved portion protruding in an opening direction towards each of said openings and which has a length not less than said axial core length, said strip body having a pair of opposite ends engaged with and extending into said engaging holes of each of said holder segments so as to prevent said elastic pieces from falling away from each of said holder segments,
• and a pair of columnar portions angularly bent at and extending in said opening direction from opposite ends of said strip body,
• and wherein engaging pieces are provided extending from upper ends of said pair of columnar portions towards each other and engaging with said engaging recesses of said core piece, such that said curved portion of said strip body is pressed by said core piece to be expanded and thereby press said pair of columnar portions onto edge portions of said engaging holes of said holder segments, so that the mutual distances between said pair of columnar portions and between said pair of engaging pieces are reduced to effectively clamp said core pieces in an axial direction thereof,
• whereby each of said core pieces is held in each of said holder segments with each of said lip portions protruding from each of said holder segments through each of said openings,
• whereby when said pair of holder segments are closed together, each of said core pieces is displaced from the protruding position towards the inside of said core receiving recess and is forced by reaction of said strip body as it is deformed by said displacement,
• and whereby said pair of lip portions of one of said core pieces is brought into abutting contact with the pair of lip portions of the other of said core pieces to complete the formation of said cylindrical core shape.