Abstract: A vibration proofing heat shield plate fixed such as to cover at least a part of a heat source while forming a gap with respect to a surface of the heat source is provided with a vibration proofing heat shield plate main body portion, a collar member positioned at an open hole of the vibration proofing heat shield plate main body portion and provided with a pair of locking pieces fastened by bolt to the heat source, a washer member in which a portion interposed between a pair of locking pieces of the collar member is formed in an approximately C-shaped cross section, and a joint member joining the washer member and the vibration proofing heat shield plate main body.

Abstract: A vibration proofing heat shield plate (10) fixed such as to cover at least a part of a heat source (20) while forming a gap with respect to a surface of the heat source is provided with a vibration proofing heat shield plate main body portion (14), a collar member (11) positioned at an open hole (141) of the vibration proofing heat shield plate main body portion and provided with a pair of locking pieces (12, 13) fastened by bolt (17) to the heat source (20), a washer member (15) in which a portion interposed between a pair of locking pieces (12, 13) of the collar member (11) is formed in an approximately C-shaped cross section, and a joint member (16) joining the washer member (15) and the vibration proofing heat shield plate main body (14).

Abstract: A sound absorbing structure comprising at least one porous member including a plurality of holes, and the holes are at least one kind of through holes and non-through holes. It is preferable that a plurality of porous members are stacked. It is also preferable that the holes of porous members are formed as diameter-varied holes, and an area of opening of each diameter-varied hole formed in the surface opposite to a sound source is largest and the area of opening of each the diameter-varied hole is reduced in a direction of the thickness of the porous member. Moreover, it is also preferable that the sound absorbing structure further comprises a coating film formed on at least a surface of the porous member which is opposite to a sound source wherein the holes penetrates the coating film and the porous member.

Abstract: A method of attaching a vibration floating washer with a sleeve to a heat insulating plate including an attaching-bolt insertion hole. The method comprises: disposing the metallic damping element on an inner side and a peripheral edge portion of the attaching-bolt insertion hole; inserting a male sleeve of a male washer and a female sleeve of a female washer respectively into the bolt insertion hole from both sides of the heat insulating plate; and fitting and fixing the male washer and the female washers to each other with a fitting portion provided on at least one of the male sleeve and the female sleeve so that the heat insulating plate is maintained in a state of noncontact with both the male washer and the female washer.