Speaker

Abstract

A speaker includes a housing; a support assembly installed on the lower end of the housing to support the housing; at least one first speaker unit installed in the housing to reproduce a sound signal; and a second speaker unit installed in the support assembly to reproduce a sound signal which belongs to a low sound band. Openings are defined through both sides of the support assembly to transmit to the outside sound reproduced by the second speaker unit. A guide cone is provided to the lower end of the support assembly to guide sound toward the openings. The speaker unit can be installed in a baffle which is supported at the opened front end of the housing to be rotated about a vertical axis. Through rotating the baffle, the speaker unit can be actually rotated within a predetermined range to change a sound transmission direction.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a perspective view illustrating the construction of a conventional speaker;

FIG. 2 is a perspective view illustrating the outer appearance of a speaker in accordance with a first embodiment of the present invention;

FIG. 3 is an exploded perspective view illustrating the construction of the speaker according to the first embodiment of the present invention;

FIG. 4 is a perspective view illustrating the construction of a support assembly constituting the speaker according to the first embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view illustrating the construction of the support assembly constituting the speaker according to the first embodiment of the present invention;

FIG. 6 is an exemplary perspective view illustrating a speaker housing in accordance with a second embodiment of the present invention;

FIG. 7 is an exploded perspective view illustrating the speaker housing according to the second embodiment of the present invention; and

FIG. 8 is a transverse cross-sectional view illustrating the speaker housing according to the second embodiment of the present invention.

Claims

1. A speaker comprising: a housing;a support assembly installed on a lower end of the housing to support the housing;at least one first speaker unit installed in the housing to reproduce a sound signal; anda second speaker unit installed in the support assembly to reproduce a sound signal which belongs to a relatively low sound band.

2. The speaker as set forth in claim 1, wherein the first speaker unit is installed to face the front through a front end of the housing, and the second speaker unit is installed to face the floor on which the support assembly is placed.

3. The speaker as set forth in claim 1, wherein the first speaker unit is installed in a baffle which is rotatably supported at the front end of the housing which is opened.

4. The speaker as set forth in claim 2, wherein the support assembly comprises: a support frame coupled to the housing, and having a ring-shaped ring part and supporting parts which extend from opposite ends of the ring part to be connected with each other at distal ends thereof;a unit case installed between the supporting parts of the support frame, having installed therein the second speaker unit, and defined with openings for communicating the exterior and interior of the support assembly with each other;cover members attached to the supporting parts to constitute an outer appearance of the support assembly; anda guide cone installed on lower ends of the supporting parts to face the second speaker unit to guide sound outputted from the second speaker unit.

5. The speaker as set forth in claim 4, wherein a base plate is secured to the ring part of the support frame to constitute a lower surface of the support assembly.

6. The speaker as set forth in claim 5, wherein the guide cone is integrally formed with the base plate and has a frusto-conical configuration.

7. The speaker as set forth in claim 6, wherein the first speaker unit has a planar configuration and reproduces a sound signal which belongs to a medium sound band.

8. The speaker as set forth in claim 7, wherein a plurality of first speaker units are installed on a middle portion of the housing to be arranged in a vertical direction.

9. The speaker as set forth in claim 1, further comprising: a third speaker unit installed on an upper end of the housing to reproduce a sound signal which belongs to a high sound band.

10. The speaker as set forth in claim 9, wherein the housing has a hexahedral configuration in which a leftward and rightward width is greater than a forward and rearward width and which is flat and elongate in the vertical direction.

11. The speaker as set forth in claim 3, wherein the baffle can be rotated about a vertical axis and covers the entire front end of the housing which is opened.

12. The speaker as set forth in claim 3, wherein the baffle can be rotated about a horizontal axis and covers the entire front end of the housing which is opened.

13. The speaker as set forth in claim 11, wherein a front panel is installed on a front surface of the baffle and has a grille cap at a position which faces the first speaker unit.

14. The speaker as set forth in claim 11, wherein the baffle has a semi-circular column-shaped configuration which has a flat front surface.

15. The speaker as set forth in claim 11, wherein each of both sides of the baffle is formed in the shape of an arc which has a radius of curvature corresponding to a half of the leftward and rightward width of the housing.

16. The speaker as set forth in claim 15, wherein rotation pins are formed at widthwise middles of front ends on upper and lower end surfaces of the baffle, and pin holes are defined on upper and lower inner surfaces of the housing at positions corresponding to the rotation pins so that the rotation pins can be rotatably supported in the pin holes, respectively.

17. The speaker as set forth in claim 3, wherein the housing is divided into a plurality of compartments by at least one partitioning wall, and a plurality of baffles are installed in the plurality of compartments.

18. The speaker as set forth in claims 14 or 15, wherein a rear end of the baffle is opened to communicate the inside of the baffle with the inside of the housing.

19. A speaker comprising: a housing;a support assembly installed on a lower end of the housing to support the housing;at least one first speaker unit installed in the housing to reproduce a sound signal; anda second speaker unit installed in the support assembly to reproduce a sound signal which belongs to a relatively low sound band,wherein openings are defined through both sides of the support assembly to transmit to the outside sound reproduced by the second speaker unit, and a guide cone is provided to a lower end of the support assembly to guide sound toward the openings.

20. The speaker as set forth in claim 19, wherein the support assembly comprises: a support frame formed through die-casting, coupled to the housing, and having a ring-shaped ring part and supporting parts which extend from opposite ends of the ring part to be connected with each other at distal ends thereof;a unit case installed between the supporting parts of the support frame, having installed therein the second speaker unit, and defined with the openings for communicating the exterior and interior of the support assembly with each other;cover members attached to the supporting parts to constitute an outer appearance of the support assembly; anda base plate constituting a lower surface of the support assembly and having the guide cone for guiding sound outputted from the second speaker unit.

21. The speaker as set forth in claims 19 or 20, wherein each first speaker unit has a planar configuration and reproduces a sound signal which belongs to a medium sound band, and a plurality of first speaker units are installed on a middle portion of the housing to be arranged in a vertical direction.

22. The speaker as set forth in claim 21, further comprising: a third speaker unit installed on an upper end of the housing to reproduce a sound signal which belongs to a high sound band.

23. A speaker comprising: a housing opened at a front end thereof;a support assembly installed on a lower end of the housing to support the housing;a baffle covering the entire front end of the housing which is opened, and installed to be rotated about a vertical axis;at least one speaker unit installed in the baffle; andat least one speaker unit installed in the support assembly.