Earphone with rotatable earphone cap

• US 8,406,448 B2
• Filed: 10/19/2010
• Issued: 03/26/2013
• Est. Priority Date: 10/19/2010
• Status: Expired due to Fees

• Current Assignee: Cheng UEI Precision Industry Company Limited
• Original Assignee: Cheng UEI Precision Industry Company Limited
• Inventors: Lin, You-ruei, Chen, Chun-hung, Tseng, Mu-tsun
• Primary Examiner(s): Tran, Nhan T
• Assistant Examiner(s): Wang, Xi
• Application Number:
  US12/907,984
• Publication Number:
  US 20120093331A1
• Time in Patent Office: 889 Days
• Field of Search: 381/370, 381/371, 381/373, 381/380, 381/386, 381 1-124, 381300-311, 381332-336, 381/382
• US Class Current: 381/380
• CPC Class Codes: H04R 1/1091 Details not provided for in groups H04R1/1008 - H04R1/1083

Abstract

Provided is an earphone, including an earphone body and an earphone cap. The earphone body includes an earphone shell forming a sound cavity and disposing a sound-guiding pipe. The sound-guiding pipe disposes at least one through hole. The earphone cap is rotatably mounted on the earphone body and includes a main body and a barrel. The barrel is located on the inside of the main body and arranged to encompass the sound-guiding pipe. The barrel disposes at least one opening, which is arranged to be aligned or misaligned with the part or whole of the through hole. The earphone of the present invention can make the opening be aligned or misaligned with and the part or whole of the through hole by rotating the earphone cap, thereby varying the pressure of the sound cavity to attain the object of adjusting sound effect.

Claims

1. An earphone comprising:

an earphone body, including an earphone shell, which forms a sound cavity in inside thereof and disposes a sound-guiding pipe on one end thereof, wherein the sound-guiding pipe disposes at least one through hole on a sidewall thereof; and

an earphone cap, being rotatably mounted on the earphone body and including a main body and a barrel, wherein the barrel is located on the inside of the main body and arranged to encompass the sound-guiding pipe, and the barrel disposes at least one opening, which can be arranged to be aligned or misaligned with the part or whole of the through hole.

2. The earphone as claimed in claim 1, wherein the sound-guiding pipe disposes an annular groove concavely forming on an outer surface thereof, the barrel disposes a holding portion protruding on an inner wall thereof and being held into the annular groove.

3. The earphone as claimed in claim 1, wherein the earphone cap disposes a recess on one end of the barrel, and the earphone further comprises a reticular spacer placed into the recess.

4. The earphone as claimed in claim 1, wherein the through hole and the opening can contain damping objects.