Speaker box

• US 4,905,860 A
• Filed: 05/18/1988
• Issued: 03/06/1990
• Est. Priority Date: 05/20/1987
• Status: Expired due to Term

• Current Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Original Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Inventors: Kamata, Junichi, Kurihara, Norimitsu
• Primary Examiner(s): Hepperle, Stephen M.
• Application Number:
  US07/195,331
• Time in Patent Office: 657 Days
• Field of Search: 220/72, 296/152, 381/86, 381/188, 381/205
• US Class Current: 381/86
• CPC Class Codes: B60R 11/0217 for loud-speakers
• CPC Class Codes: B60R 2011/0021 Doors
• CPC Class Codes: B60R 2011/0043 for integrated articles, i.e. not substantially protruding from the surrounding parts
• CPC Class Codes: H04R 1/025 Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
• CPC Class Codes: H04R 2499/13 Acoustic transducers and sound field adaptation in vehicles

Abstract

A speaker box for housing a radio speaker unit and intended for mounting within a vehicle door is formed of plastic by a monobloc molding method such as blow molding thus providing a seamless speaker box that is free from air leakage. The speaker box has an irregular configuration matching a space within the vehicle door, whereby it can be firmly secured in place maintaining maximum inner volume. The speaker box further has ribs extending across flat regions on the box thus improving its rigidity against vibration caused by sound pressure and the like.

Claims

1. A speaker box mounted within a vehicle for housing an acoustic speaker unit, comprising a monobloc molded box having an irregular configuration, and including a generally disc-shaped main body and a box-like section formed integrally therewith so as to fit within complementary internal spaces within said vehicle, wherein said molded box has an integral portion which is fitted within reinforcing portions of said vehicle, and wherein said molded box surrounds an enlarged inner volume for providing improved acoustic performance for said speaker box.

2. A speaker box according to claim 1 wherein said monobloc molded box comprises a blow molded box.

3. A speaker box according to claim 1 wherein said speaker box has a flat region which is provided with a rib thereon.

4. A speaker box according to claim 3 wherein said rib extends from one edge of said flat region to the opposite edge thereof, traversing the entire distance between said edges.

5. A speaker box according to claim 4, wherein said rib is U-shaped in cross section.

6. A speaker box according to claim 1, wherein said projection projects from said box-like section and is formed integrally therewith.

7. A speaker box according to claim 1, further comprising a bass reflex vent.