Vehicle-mounted speaker device and vehicle having the same

• US 20060291687A1
• Filed: 06/23/2006
• Published: 12/28/2006
• Est. Priority Date: 06/23/2005
• Status: Abandoned Application

• Current Assignee: Pioneer Corporation, Tohoku Pioneer Company Limited (Pioneer Corporation)
• Original Assignee: Pioneer Corporation, Tohoku Pioneer Company Limited (Pioneer Corporation)
• Inventors: Maekawa, Koji
• Application Number:
  US11/473,174
• Publication Number:
  US 20060291687A1
• Time in Patent Office: Days
• US Class Current: 381/389
• CPC Class Codes: H04R 1/2834 for loudspeaker transducers
• CPC Class Codes: H04R 1/2842 for loudspeaker transducers
• CPC Class Codes: H04R 2499/13 Acoustic transducers and sound field adaptation in vehicles

Abstract

A vehicle having a vehicle-mounted speaker device attached to a spare tire accommodation unit for use has a vehicle-mounted speaker unit, which is fixedly attached to the accommodation unit and radiates sound, and causes an accommodation lid of the accommodation unit to act as a passive vibrating plate to the sound radiated from the vehicle-mounted speaker unit. Since the accommodation unit is used as a sound space, and the accommodation lid is vibrated as the passive vibrating plate, an output sound pressure level can be increased in any arbitrary frequency band. As a result, a sufficient sound pressure level can be secured, and compensated in a frequency band in which the output sound pressure level is conventionally insufficient.

Claims

1. A vehicle-mounted speaker device attached to a spare tire accommodation unit for use, comprising:

a speaker unit for radiating sound to the spare tire accommodation unit; and

a passive vibrating plate that forms a sound space in the spare tire accommodation unit and is vibrated in response to the sound radiated from the speaker unit to the sound space.

2. A vehicle-mounted speaker device according to claim 1, wherein the passive vibrating plate also acts as a lid of the spare tire accommodation unit.

3. A vehicle-mounted speaker device according to claim 1, wherein a trunk bottom plate having a lattice-like structure is disposed above the lid for use.

5. A vehicle-mounted speaker device according to claim 1, wherein the peripheral edge of the passive vibrating plate comprises a flexible material.

6. A vehicle-mounted speaker device according to claim 1, wherein the passive vibrating plate entirely comprises a flexible material.

7. A vehicle-mounted speaker device according to claim 1, wherein the output sound pressure level of the passive vibrating plate is increased in a predetermined center frequency.

8. A vehicle comprising a vehicle-mounted speaker device according to claim 1.

4. A vehicle-mounted speaker device attached to a spare tire accommodation unit in a trunk room for use, comprising:

a speaker unit for radiating sound to the spare tire accommodation unit;

a sound introduction pipe for introducing the sound radiated from the speaker unit; and

a passive vibrating plate that forms a sound space using at least one side surface of the trunk room, and is vibrated in response to the sound introduced from the sound introduction pipe.