LOUDSPEAKER ENCLOSURE

• US 3,804,195 A
• Filed: 05/25/1972
• Issued: 04/16/1974
• Est. Priority Date: 05/25/1972
• Status: Expired due to Term

• Current Assignee: Alvin A. Strawn, Robert E. Croup, Scott F. Everitt
• Original Assignee: Alvin A. Strawn, Robert E. Croup, Scott F. Everitt
• Inventors: Everitt, Scott F., Croup, Robert E., Strawn, Alvin A.
• Primary Examiner(s): Tomsky, Stephen J.
• Application Number:
  US05/256,926
• Time in Patent Office: 691 Days
• Field of Search: 181/31B 229/14C
• US Class Current: 181/148
• CPC Class Codes: H04R 1/021 incorporating only one transducer
• CPC Class Codes: Y10S 229/939 Container made of corrugated paper or corrugated paperboard

Abstract

A loudspeaker enclosure comprises four discrete side wall units and an end wall unit each including a plurality of rectangular sheets of corrugated material arranged in a laminated stack with the corrugations of each sheet extending perpendicular to the corrugations of adjacent sheets, opposite ends of each side wall unit being constructed complementary to each other and the side wall units being assembled end-to-end with complementary ends glued and taped together to form a tubular wall structure rectangular in transverse cross-section defining an opening at one end thereof and being closed at the other end thereof by the end wall unit. The outer sheet of each side wall unit extends laterally beyond the other sheets thereof and is partially severed to form a flap which is folded back toward the other sheets and spaced therefrom to define a channel adjacent to the one end of the tubular wall structure for receiving a mounting frame therein. A loudspeaker mounting board with a loudspeaker mounted thereon is secured to the mounting frame and a grille cloth frame covered by a grille cloth is secured to the loudspeaker mounting board. Suitable strips of sealing and cushioning material are provided between the mounting frame and the mounting board.

Claims

1. A loudspeaker enclosure comprising a plurality of wall units interconnected to form a housing, said housing having an opening therein to facilitate the emission of sound waves therefrom, each of said wall units being formed of a plurality of sheets of corrugated material arranged in a laminated stack, the corrugations of each of said sheets of each said wall unit extending in a direction substantially perpendicular to the direction of the corrugations of adjacent sheets of said wall unit, predetermined ones of said wall units being disposed in use in continuous end-to-end engagement with each other to form a wall structure surrounding said opening, each of the predetermined ones of said wall units having a groove formed in the inneR surface thereof, said grooves being disposed in use adjacent to said opening and in alignment with one another, and a rigid mounting frame snugly received in said grooves for facilitating the mounting of an associated loudspeaker assembly in said housing, whereby the perpendicular corrugations of adjacent sheets of said wall units cooperate to facilitate the suppression by said wall units of undesirable sound waves emitted from said housing.

2. The loudspeaker enclosure set forth in claim 1, wherein said rigid mounting frame is formed of wood.

3. The loudspeaker enclosure set forth in claim 1, wherein said wall structure includes four wall units respectively disposed substantially perpendicular to one another, said mounting frame being rectangular in shape with the four sides thereof being respectively disposed in the grooves of said four wall units.

4. A loudspeaker enclosure comprising a plurality of discrete wall units interconnected to form a housing, said housing having an opening therein to facilitate the emission of sound waves therefrom, each of said wall units being formed of a plurality of sheets of corrugated material arranged in a laminated stack, the corrugations of each of said sheets of each said wall unit extending in a direction substantially perpendicular to the direction of the corrugations of adjacent sheets of said wall unit, predetermined ones of said wall units being disposed in use in continuous end-to-end engagement with each other to define said opening with the ends of each wall unit being respectively constructed and arranged complementary to the adjacent end of an adjacent wall unit and being secured thereto, each of the predetermined ones of said wall units having a groove formed in the inner surface thereof and extending from one end of said wall unit to the opposite end thereof, said grooves being disposed in use adjacent to said opening and in alignment with one another and cooperating to form a continuous channel extending entirely around said wall structure, and a rigid frame snugly received in said channel and extending the entire length thereof for facilitating the mounting of an associated loudspeaker assembly in said housing, whereby the perpendicular corrugations of adjacent sheets of said wall units cooperate to facilitate the suppression by said wall units and undesirable sound waves emitted from said housing.

5. The loudspeaker enclosure set forth in claim 4, wherein each of said wall units comprises three sheets of corrugated material, said outermost sheet and the innermost sheet each having a single layer of corrugations and the intermediate sheet having a double layer of corrugations.

6. The loudspeaker enclosure set forth in claim 4, wherein each of said wall units has three sheets of corrugated material, each of said sheets having a single layer of corrugations.

7. The loudspeaker enclosure set forth in claim 4, and further including a decorative facing material completely covering the outer facing layer of said outermost sheet of each wall unit.

8. A sound reproduction system comprising a plurality of discrete wall units interconnected to form a closed housing, said housing having an opening therein to facilitate the emission of sound waves therefrom, each of said wall units being formed of a plurality of sheets of corrugated material arranged in a laminated stack, the corrugations of each of said sheets of each said wall unit extending in a direction substantially perpendicular to the direction of the corrugations of adjacent sheets of said wall unit, said predetermined ones of said wall units being disposed in use in continuous end-to-end engagement with each other to define said opening with each end of each wall unit being respectively constructed and arranged complementary to the adjacent end of an adjacent wall unit and being secured thereto, each of the predetermined ones of said wall units having a groove formed in the inner surface thereof and extending from one end of said wall unit to the oppoSite end thereof, said groove being disposed in use adjacent to said opening in alignment with one another and cooperating to form a continuous channel extending entirely around said wall structure, a rigid mounting frame snugly received in said channel and extending the entire length thereof, a loudspeaker mounting board disposed in said opening within said wall structure and secured to the outer surface of said mounting frame and having an aperture therein, and a loudspeaker having a cone-shaped diaphragm secured to the inner surface of said loudspeaker mounting board and extending inwardly therefrom in axial alignment with the aperture therein for transmitting therethrough to the exterior of said housing sound waves generated at the front surface of said diaphragm and for transmitting into said housing sound waves generated at the rear surface of said diaphragm, whereby the perpendicular corrugations of adjacent sheets of said wall units cooperate to facilitate the suppression by said wall units and undesirable sound waves emitted from said housing.

9. The sound reproduction of system set forth in claim 8, and further including a sealing strip disposed in use between said rigid mounting frame and said loudspeaker mounting board and secured to each for sealing the juncture between said mounting frame and said wall units and for cushioning said loudspeaker mounting board.

10. A sound reproduction system comprising a plurality of discrete wall units interconnected to form a closed housing, said housing having an opening therein to facilitate the emission of sound waves therefrom, each of said wall units being formed of a plurality of sheets of corrugated material arranged in a laminated stack, the corrugations of each of said sheets of each said wall unit extending in a direction substantially perpendicular to the direction of the corrugations of adjacent sheets of said wall unit, said predetermined ones of said wall units being disposed in use in continuous end-to-end engagement with each other to define said opening with each end of each wall unit being respectively constructed and arranged complementary to the adjacent end of an adjacent wall unit and being secured thereto, each of the predetermined ones of said wall units having a groove formed in the inner surface thereof and extending from one end of said wall unit to the opposite end thereof, said grooves being disposed in use adjacent to said opening in alignment with one another and cooperating to form a continuous channel extending entirely around said wall structure, a rigid mounting frame snugly received in said channel and extending the entire length thereof, a loudspeaker mounting board disposed in said opening within said wall structure and secured to the outer surface of said mounting frame and having an aperture therein, a loudspeaker having a cone-shaped diaphragm secured to the inner surface of said loudspeaker mounting board and extending inwardly therefrom in axial alignment with the aperture therein for transmitting therethrough to the exterior of said housing sound waves generated at the front surface of said diaphragm and for transmitting into said housing sound waves generated at the rear surface of said housing, a grille frame disposed in said opening within said wall structure and connected to the outer surface of said loudspeaker mounting board and having an aperture therein substantially congruent with the aperture in said loudspeaker mounting board, and a grille cloth secured to said grille frame and covering the outer surface thereof for concealing said loudspeaker and said loudspeaker mounting board, whereby the perpendicular corrugations of adjacent sheets of said wall units cooperate to facilitate the suppression by said wall units and undesirable sound waves emitted from said housing.

11. The sound reproduction system set forth in claim 10, and further including two mounting strips respectively secured to said loudspeaker mounting board and said grille frame and extending around thE entire periphery thereof in facing relationship with each other, said mounting strips cooperating in use for releasably mounting said grille frame on said loudspeaker mounting board.

12. The sound reproduction system set forth in claim 10, and further including a strip of decorative molding secured to said grille cloth around the margin thereof.

13. A sound reproduction system comprising a plurality of wall units interconnected to form a housing, said housing having an opening therein to facilitate the emission of sound waves therefrom, each of said wall units being formed of a plurality of sheets of corrugated material arranged in a laminated stack, the corrugations of each of said sheets of each said wall unit extending in a direction substantially perpendicular to the direction of the corrugations of adjacent sheets of said wall unit, predetermined ones of said wall units being disposed in use in continuous end-to-end engagement with each other to form a wall structure surrounding said opening, each of the predetermined ones of said wall units having a groove formed in the inner surface thereof, said grooves being disposed in use adjacent to said opening and in alignment with one another, a rigid mounting frame snugly received in said grooves, a loudspeaker mounting board disposed in said opening and secured to said mounting frame and having an aperture therein, and a loudspeaker having a cone-shaped diaphragm secured to said loudspeaker mounting board and extending inwardly therefrom in axial alignment with the aperture therein for transmitting therethrough to the exterior of said housing sound waves generated at the front surface of said diaphragm and for transmitting into said housing sound waves generated at the rear surface of said diaphragm, whereby the perpendicular corrugations of adjacent sheets of said wall units cooperate to facilitate the suppression by said wall units of undesirable sound waves emitted from said housing.