Earplug Having A Resilient Core Structure

• US 20120255564A1
• Filed: 04/06/2011
• Published: 10/11/2012
• Est. Priority Date: 04/06/2011
• Status: Active Grant

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Kim, JungMo, Park, KangSoo, Sa, InYoung
• Granted Patent: US 8,616,214 B2
• Time in Patent Office: Days
• US Class Current: 128/864
• CPC Class Codes: A61F 11/10 inflatable or expandable

Abstract

An earplug for insertion into an ear canal of a user has a front, a back, a side extending between the front and the back, a longitudinal axis, and a transverse axis. A core structure is selectively moveable from an un-deformed position to a deformed, insertable position suitable for insertion of the earplug into the ear canal of the user. A cover covers at least a portion of the core structure and is adapted for contact with the ear canal of the user. An actuator is operatively connected to the core structure for moving the core structure from the un-deformed position to the deformed, insertable position upon application of a force to the actuator.

Claims

1. An earplug for insertion into an ear canal of a user, the earplug comprising:

a front, a back, a side extending between the front and the back, a longitudinal axis, and a transverse axis,

a core structure being selectively moveable from an un-deformed position to a deformed, insertable position suitable for insertion of the earplug into the ear canal of the user;

a cover for covering at least a portion of the core structure, the cover being adapted for contact with the ear canal of the user; and

an actuator extending outward from the back and operatively connected to the core structure for moving the core structure from the un-deformed position to the deformed, insertable position upon application of a force to the actuator generally along the longitudinal axis.

2. The earplug as set forth in claim 1 wherein the core structure is resiliently deformable such that the core structure is biased toward the un-deformed position when in the deformed, insertable position.

3. The earplug as set forth in claim 1 wherein the core structure comprises a plurality of beam members, at least some of the beam members being connected by hinges about which the beam members can be moved.

4. The earplug as set forth in claim 3 wherein the hinges connecting the beam members are living hinges.

5. The earplug as set forth in claim 1 wherein the side tapers from the back toward the front.

6. The earplug as set forth in claim 1 wherein the cover is a soft foam material that completely covers the core structure.

7. An earplug for insertion into an ear canal of a user, the earplug comprising:

a front, a back, a side extending between the front and the back, a longitudinal axis, and a transverse axis,

a core structure being selectively moveable from an un-deformed position to a deformed, insertable position suitable for insertion of the earplug into the ear canal of the user, the core structure being resilient such that the core structure is biased toward the un-deformed position when in the deformed, insertable position;

a cover for covering at least a portion of the core structure, the cover being adapted for contact with the ear canal of the user; and

an actuator operatively connected to the core structure for moving the core structure from the un-deformed position to the deformed, insertable position.

8. The earplug as set forth in claim 7 wherein the core structure comprises a framework comprising a first hub, a second hub spaced from the first hub, and a plurality of beam members extending between and connecting the first and second hubs, each of the plurality of beam members being moveable about a hinge.

9. The earplug as set forth in claim 8 wherein each of plurality of beam members comprising a first beam segment and a second beam segment hingedly connected to the first beam segment by the hinge.

10. The earplug as set forth in claim 9 wherein the hinge connecting the first and second beam segments is a living hinge.

11. The earplug as set forth in claim 8 further comprising a shaft extending between the first and second hubs.

12. The earplug as set forth in claim 11 wherein the actuator comprises a post, and the shaft defines a passage, the post of the actuator extending into the passage of the shaft.

13. The earplug as set forth in claim 12 wherein the post of the actuator acts on the first hub to move the core structure from the un-deformed position to the deformed, insertable position.

14. The earplug as set forth in claim 12 wherein the second hub is operatively connected to the post of the actuator and moveable with the post relative to the shaft.

15. The earplug as set forth in claim 7 wherein the cover comprise a foam material.

16. A method of inserting an earplug into an ear canal of an ear, the method comprising:

applying a force to an actuator of the earplug to move a core structure of the earplug from an un-deformed position to a deformed, insertable position wherein the core structure collapses to reduce a width of the earplug, the core structure being resiliently biased from the deformed, insertable portion toward the un-deformed position;

inserting the earplug into the ear canal while the earplug is in the deformed, insertable position;

releasing the actuator thereby allowing the bias of the core structure to move the core structure from the deformed, insertable position to a partially deformed, inserted position wherein the earplug engages the user'"'"'s ear canal.

17. The method as set forth in claim 16 wherein applying a force to the actuator comprises applying a force to the actuator generally along a longitudinal axis of the earplug.

18. The method as set forth in claim 17 wherein the actuator comprises a head and a post extending outward from the head, and wherein applying a force to the actuator generally along the longitudinal axis of the earplug comprises applying the force to the head of the actuator.

19. The method as set forth in claim 16 wherein the earplug is adapted to reduce the effects of noise in high noise environments when engaged with the user'"'"'s ear canal.

20. The method as set forth in claim 16 wherein the core structure comprises a first hub, a second hub spaced from the first hub, and a plurality of beam members extending between the first and second hubs, each of the plurality of beam members having a hinge about which the beam member can be moved, wherein applying a force to the actuator causes each of the plurality of beam members to pivot about the hinge when the core structure is moved from the un-deformed position to the deformed, insertable position.