Patent Publication Number: US-6335975-B1

Title: Rainproof and omnidirectional loudspeaker system

Description:
FIELD OF THE INVENTION 
     The present invention relates generally to a loudspeaker, and more particularly to a rainproof and omnidirectional loudspeaker system. 
     BACKGROUND OF THE INVENTION 
     The conventional omnidirectional loudspeaker system is generally formed of a plurality of speakers, which are gather in a cluster on a support frame. In light of each speaker radiating sound waves at a predetermined angle, the conventional omnidirectional loudspeaker system is ineffective at best. In addition, the conventional loudspeaker system is not rainproof. 
     SUMMARY OF THE INVENTION 
     The primary objective of the present invention is to provide a state-of-the-art omnidirectional loudspeaker system. 
     It is another objective of the present invention to provide an omnidirectional and rainproof loudspeaker system. 
     The loudspeaker system of the present invention comprises a base set, a plurality of fitting ring sets mounted on top of the base set. Each fitting ring set has a ring cover forming a through hole and a ring portion. A plurality of partitions are disposed between the two adjoining ring covers. An empty portion is located between two partitions. The ring portion of the ring cover is extended to shield the empty portion. At least one speaker is mounted in one fitting ring set. The topmost fitting ring set is provided with an upper cover set. The sound waves are radiated into air in all directions via the through holes of the fitting ring sets and the empty portions. The rainproof effect is provided by the ring covers of the fitting ring sets. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 shows a side plan view of a preferred embodiment of the present invention. 
     FIG. 2 shows an exploded view of the preferred embodiment of the present invention. 
     FIG. 3 shows a partial exploded view of the preferred embodiment of the present invention. 
     FIG. 4 shows another partial exploded view of the preferred embodiment of the present invention. 
     FIG. 5 shows a side schematic view of the preferred embodiment of the present invention. 
     FIG. 6 shows a schematic view of the preferred embodiment of the present invention in use. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     As shown in FIG. 1, a loudspeaker system  1  embodied in the present invention is mounted on a lower support rod  6  which is formed of a base seat  6 A and an upright tube  6 B. The loudspeaker system  1  of the present invention is rainproof and omnidirectional. 
     As shown in FIGS. 2-4, the loudspeaker system  1  of the present invention comprises the component parts, which are described hereinafter. 
     A base set  10  has a pillar connecting disk  11  for fastening the lower support rod  6 , and a seat body  12  mounted on the pillar connecting disk  11 . The seat body  12  is formed of a disk portion  13  which is provided with a connection edge  15  which is in turn provided with four rod holes  16  and four fastening holes  17  arranged equiangularly. The connection edge  15  is further provided with four annular slots  18  and a receiving portion  19 . 
     A controller  20  is used for power source input and is fastened with the receiving portion  19  of the base set  10  by a plurality of bolts  25 . 
     A plurality of fitting ring sets  30  are provided with a ring cover  40  and four sets of partitions  50  mounted on the ring cover  40 . The lowest fitting ring set  30  is disposed on the base set  10 . 
     As shown in FIG. 4 the ring cover  40  has an arcuate ring portion  41  which is provided with a through hole  411 . A cover edge  42  is connected with the bottom edge of the ring portion  41 . A speaker fastening edge  43  is formed on the top edge of the ring portion  41  and is provided with four threaded holes  44 . Two first fastening portions  45  and two second fastening portions  46  are provided with a rod hole  47 . The first fastening portions  45  are provided with a fastening hole  453 . The second fastening portions  46  are provided with a threaded hole  463 . Four annular slots  48  are provided for insertion of the partitions  50 . 
     Two ring covers  40  are mounted at an angle of 90 degrees. Two bolts  35  are engaged with the threaded holes  463  of the upper ring cover  40  via the fastening holes  453 . 
     Two fastening rods  60  are put through the rod holes  16  of the base set  10  and the rod holes  47  of the ring covers  40  of each fitting ring set  30 , so as to provide a fastening action and a supporting action. The fastening rods  60  have a rod body  61 , a head  63 , and a threaded hole  65 . 
     Two speakers  70  are provided with a fastening portion  71  mounted on the speaker fastening edge  43  of two fitting ring sets  30 , a sound producing body  73  disposed on the fastening portion  71 , four inner holes  75  through which the bolts  77  are engaged with the threaded holes  44  of the ring cover  40  of each fitting ring set  30 . The sound producing direction of the sound producing body  73  is upward. 
     An upper cover set  80  is formed of a cover disk  81  and a top disk  85  disposed on the cover disk  81 . The upper cover set  80  is disposed on the topmost fitting ring set  30 . The cover disk  81  is similar in size to the ring portion  41 . 
     As shown in FIG. 1, the loudspeaker system  1  is mounted on the lower support rod  6  in a park. 
     In combination, an empty portion  53  is formed between the partitions  50  of the fitting ring sets  30 . The partitions  50  may be used to dispose another ring cover  40 . The ring portion  41  and the cover edge  42  of each ring cover  40  form a predetermined angle to shield the empty portion  53  of the fitting ring set  30 . 
     As shown in FIG. 5, the system can be fixed by the base set  10  or the upper cover set  80 . The speaker  70  sends out axially the sound waves, which are radiated into air in all directions via the through holes  411  of the ring covers  40  and the empty portions  53 . 
     The positions of the ring portions  41  and the cover edge  42  of each fitting ring set  30  are lower in relation to the partition  50  and the empty portions  53 , so as to prevent intrusion of rain or foreign object. As shown in FIG. 6, a system  1 A of another preferred embodiment of the present invention is mounted on a fastening rod  8 , so as to hang the system  1 A from a ceiling  7 . 
     The ring cover of each fitting ring set of the present invention may be of any shape, as long as it is provided with a stop edge to shield the empty portion of the fitting ring set. The partitions may be provided with sound holes to enhance the radiating effect of the sound waves. The speaker  70  may face upward or downward.