Patent ID: 11919456
Assignee: TOYOTA SHATAI KABUSHIKI KAISHA
Field: Surface technology, coating (Chemistry)
Classification: CPC B  E  G | IPC B  E  G

Claim 0:
1. A sound absorbing and insulating structure, comprising:
a sound absorbing and insulating member, a first partition member provided between the sound absorbing and insulating member and a first sound source, and a second partition member provided between the sound absorbing and insulating member and a second sound source, wherein:
the sound absorbing and insulating member is a plate-like member formed by being bent so as to be alternately brought into contact with the first partition member and the second partition member, the sound absorbing and insulating member having a plurality of hollow protrusions protruding so as to fill a gap between the first partition member and the second partition member,
first spaces and a second space are formed between the first partition member and the second partition member,
each of the first spaces being formed within a respective protrusion is closed by the first partition member,
the second space provided between adjacent protrusions is closed by the second partition member,
each of the first spaces is connected to the second space through a communication part formed as a part of each of the protrusions,
each of the communication parts is configured to communicate an inside of the protrusion with an outside of the protrusion,
an opening of each of the communication parts opened to the second space is provided at a side wall of the protrusion arranged between the first partition member and the second partition member, and
wherein the sound absorbing and insulating member is made of a material in which a plurality of cellulosic fibers are integrated in a laminated state.