Monofilament fabric acoustic suspension elements

Patent metadata

Field	Value
Publication number	US-9763012-B2
Application number	US-201113075598-A
Country	US
Kind code	B2
Filing date	Mar 30, 2011
Priority date	Mar 30, 2011
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

A method for forming a suspension element for an acoustic driver. The method includes placing an unimpregnated fabric formed from a monofilament polymer fiber in a mold, the monofilament fiber characterized by a softening point and a melting point; heating the mold and the unimpregnated fabric to a temperature greater than the softening point and less than the melting point; and cooling the mold.

First claim

What is claimed is:

1. A suspension element for an acoustic driver, comprising:
a fabric formed from a monofilament polymer fiber, woven so that the fibers are not fused at the intersections of the fibers.

2. The suspension element of claim 1 , wherein the fabric is unimpregnated.

3. The suspension element of claim 1 , comprising radial convolutions.

4. The suspension element of claim 1 , comprising a half roll geometry with grooves at an angle to the normal of an inner edge of the suspension element at the point of the groove closest to an inner circumferential edge.

5. The suspension element of claim 1 , wherein the polymer is PET.

6. The suspension element of claim 1 , wherein the polymer is PEEK.

7. The suspension element of claim 1 , further comprising a coating of a soft polymer.

8. The suspension element of claim 7 , wherein the suspension element is sealed so that air does not flow through the fabric.

9. The suspension element of claim 7 , wherein the suspension element is not sealed so that air does flows through the fabric.

10. The suspension element of claim 7 , wherein the soft polymer is a synthetic rubber.

11. The suspension element of claim 7 , wherein the soft polymer has a modulus of elasticity of 100 megapascals or less.

12. The suspension element of claim 11 , wherein the soft polymer has a modulus of elasticity of 1 megapascal or less.

13. The suspension element of claim 1 , wherein the fabric is formed from bunched monofilament fibers.

14. The suspension element of claim 1 , wherein the suspension element is a surround.

15. The suspension element of claim 1 , wherein the suspension element is a spider.

16. The suspension element of claim 1 , wherein the polymer is PPS.

Assignees

• Kawka Marek
• Liu Yang
• Zhu Weidong
• Bose Corp

Inventors

• Kawka Marek
• Liu Yang
• Zhu Weidong

Classifications

• Y10T442/2861

  Coated or impregnated synthetic organic fiber fabric · CPC title

• Y10T428/249922

  Embodying intertwined or helical component[s] · CPC title

• H04R31/003

  for diaphragms or their outer suspension · CPC title

• Y10T442/30

  Woven fabric [i.e., woven strand or strip material] · CPC title

• H04R9/043 Primary

  Inner suspension or damper, e.g. spider (outer suspension or surround H04R7/16) · CPC title