Sound absorbing structure

• US 20070017739A1
• Filed: 09/17/2004
• Published: 01/25/2007
• Est. Priority Date: 10/30/2003
• Status: Abandoned Application

• Current Assignee: Klaus Schmidt
• Original Assignee: Klaus Schmidt
• Inventors: Ueda, Hiroki, Yamagiwa, Ichiro, Tanaka, Toshimitsu, Yamaguchi, Zenzo
• Application Number:
  US10/575,943
• Publication Number:
  US 20070017739A1
• Time in Patent Office: Days
• US Class Current: 181/209
• CPC Class Codes: F16F 15/02 Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems F16F15/005 takes precedence ; layered products B32B; suppression of vibration in ships B63; relieving load on bearings, using magnetic means F16C39/06
• CPC Class Codes: G10K 11/168 Plural layers of different materials, e.g. sandwiches

Abstract

A sound absorbing structure utilizes the vibration of a plate-like body (1), and includes the plate-like body (1), a vibration damping member (2) provided on at least one surface of the plate-like body (1), and an installation portion (3) provided at an opposite side of the vibration damping member against the plate-like body (1).

Claims

1. A sound absorbing structure utilizing the vibration of a plate-like body, comprising:

a vibration damping member provided on at least one surface of the plate-like body; and

an installation portion provided at an opposite side of the vibration damping member against the plate-like body.

2. A sound absorbing structure according to claim 1, wherein

vibration damping members are provided on the opposite surfaces of the plate-like body;

and

an installation portion is provided at an opposite side of at least one vibration damping member against the plate-like body.

5. A sound absorbing structure according to claim 1, wherein the vibration damping member is made of an elastic body or a viscoelastic body.

6. A sound absorbing structure according to claim 1, wherein the vibration damping member is sheet-shaped.

7. A sound absorbing structure according to claim 1, wherein the vibration damping member is line-shaped or strip-shaped.

8. A sound absorbing structure according to claim 1, wherein the vibration damping member is made of an elastic body or a viscoelastic body and is lattice-shaped.

9. A sound absorbing structure according to claim 2, wherein the vibration damping members are made of elastic bodies or viscoelastic bodies and at least one of the vibration damping members provided on the opposite surfaces of the plate-like body is lattice-shaped.

10. A sound absorbing structure according to claim 8, wherein the installation portion is lattice-shaped and has the same shape as the lattice-shaped vibration damping member.

11. A sound absorbing structure according to claim 8, wherein the lattice of the lattice-shaped vibration damping member includes a plurality of square and/or rectangular shapes having different sizes.

12. A sound absorbing structure according to claim 9, wherein the vibration damping members provided on the opposite surfaces of the plate-like body are lattice-shaped.

13. A sound absorbing structure according to claim 9, wherein the installation portion is lattice-shaped and has the same shape as the lattice-shaped vibration damping member.

14. A sound absorbing structure according to claim 9, wherein the lattice of the lattice-shaped vibration damping member includes a plurality of square and/or rectangular shapes having different sizes.

15. A sound absorbing structure according to claim 1, wherein the plate-like body includes a plurality of through holes.

16. A sound absorbing structure according to claim 15, wherein the plate-like body and the vibration damping member include a plurality of through holes.

17. A sound absorbing structure according to claims 1, wherein one or a plurality of other plate-like body(s) is/are arranged at an opposite side of the plate-like body against the installation portion.

18. A sound absorbing structure according to claim 17, wherein an elastic body or a viscoelastic body is arranged between the plurality of other plate-like bodies.

19. A sound absorbing structure according to claim 1, wherein the installation portion is another plate-like body provided with projections.

3-4. -4. (canceled)

21. A sound absorbing structure utilizing the vibration of a plate-like body, comprising:

an installation portion provided on at least one surface of the plate-like body; and

a vibration damping member provided on an opposite surface of the plate-like body against the installation portion and/or on the same surface of the plate-like body as the installation portion.

20. A sound absorbing structure according to claim 21, wherein the plate-like body and a plurality of installation portions are integrally formed, and the vibration damping members are arranged on the plate-like body between the plurality of installation portions.

22. A sound absorbing structure according to claim 21, wherein a constraining member is provided at an opposite side of the vibration damping member against the plate-like body.

23. A sound absorbing structure according to claim 21, wherein the vibration damping member is made of an elastic body or a viscoelastic body.

24. A sound absorbing structure according to claim 21, wherein the vibration damping member is sheet-shaped.

25. A sound absorbing structure according to claim 21, wherein the vibration damping member is line-shaped or strip-shaped.

26. A sound absorbing structure according to claim 21, wherein the plate-like body includes a plurality of through holes.

27. A sound absorbing structure according to claim 26, wherein the plate-like body and the vibration damping member include a plurality of through holes.

28. A sound absorbing structure according to claim 21, wherein one or a plurality of other plate-like body(s) is/are arranged at an opposite side of the plate-like body against the installation portion.

29. A sound absorbing structure according to claim 28, wherein an elastic body or a viscoelastic body is arranged between the plurality of other plate-like bodies.