Patent Translate Powered by EPO and Google Notice This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate, complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or financial decisions, should not be based on machine-translation output. DESCRIPTION JPH0394598 [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker apparatus in which an acoustic tube for guiding a sound wave is disposed on the front of the speaker. The prior art method of providing a horn or an acoustic tube on the front face of a speaker and guiding the sound wave generated from the speaker to the opening provides a greater output sound pressure than in the case where the horn or the acoustic tube is not used. There are advantages such as the sound being transmitted in the direction of, and is often used conventionally. Hereinafter, a speaker device using a conventional acoustic tube will be described with reference to the drawings. FIG. 3 is a structural conceptual view of a television set incorporating the above speaker device. In FIG. 3, 1 is a speaker, 2 is an acoustic tube to which the speaker 1 is attached, 3 is a television cabinet, and 4 is a cathode ray tube. First, the operation of the television set incorporating the speaker device using the acoustic tube 2 configured as described above will be described. As shown in FIG. 3, a speaker device in which an acoustic tube 2 for guiding a sound wave to the front of the speaker 1 is disposed along the cathode ray tube 4 inside the television set and further incorporates the television cabinet 3 along the speaker device. By adopting this structure, it is possible to miniaturize the television set. FIG. 4 is a structural conceptual view showing the configuration of the conventional speaker device. In FIG. 4, 5 is an acoustic lens provided on the front of the speaker 1, 7 is a hole for guiding the sound wave emitted from the speaker 1 to the acoustic tube 2, and 6 is a reflection provided on both sides of the hole 7. A plate 9 is a sound absorbing material, and the acoustic tube 2 is a combination of an acoustic tube panel 8 constituting most of the acoustic tube and an acoustic tube cover 10 in the direction of A. The operation of the loudspeaker apparatus which is disciplined as described above will be described below. The acoustic lens 5 and the reflection plate 6 provided on the front surface of the speaker 1 are for improving the high frequency characteristics of the speaker device, and the sound absorbing material 9 inserted on both sides 03-05-2019 1 of the reflection plate 6 is inside the acoustic tube 2. It is for suppressing the standing wave which generate ¦ occur ¦ produces. The acoustic tube 2 is regulated so that the area at the front of the speaker is small and the area is larger as it approaches the opening. The configuration will be described with reference to FIGS. 5 to 7. 5 shows a B-B sectional view of FIG. 4, FIG. 6 shows a C-C sectional view of FIG. 4, and FIG. 7 shows a D-D sectional view of FIG. The configuration of the acoustic tube 2 is as shown in FIG. 5 to FIG. 7. In FIG. 5, the sound guiding portion is structured to form a substantially uniform space from the front surface portion of the speaker to the opening portion. The speaker mounting side as the insertion portion of the sound absorbing material 9 is arranged to have a large space. Further, in FIG. 7, the acoustic part is configured to become gradually larger from the front face of the speaker to the opening. SUMMARY OF THE INVENTION However, in the above-described conventional configuration, since the structure of each part inside the acoustic tube constituting the acoustic tube 2 is complicated, the acoustic tube 2 is integrally formed by means such as integral molding. However, as shown in FIG. 4, the acoustic tube panel 8 and the acoustic tube cover 10 had to be divided into two parts. However, in order to attach the acoustic tube cover 10, it is necessary to join in such a way as to have sufficient strength in consideration of the internal resonance of the acoustic tube 2 and the like. Therefore, there existed a problem that manufacturing cost increased. SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and provides a speaker device capable of improving productivity by arranging an acoustic tube having a complicated structure to be integrally formed. With the goal. Means for Solving the Problem In order to solve the problem, the speaker device of the present invention has an acoustic tube for guiding a sound wave having a rectangular opening at the front of the speaker, and the inside of the acoustic tube is at the front of the speaker A reflection plate and an acoustic lens are arranged, and the sound conduction of the sound wave emitted from the speaker is configured so that the area is small at the front of the speaker and the area becomes larger as the opening is approached. In order to enable integral molding, the middle of the acoustic tube is divided into two blocks, and in order to facilitate assembly of the acoustic tube, one side of the rectangular shape forming the acoustic tube has a side-wiring structure. Have a discipline that makes With this configuration, in consideration of incorporation into the device, even in a speaker device having a horn and an acoustic tube whose opening is a long and narrow rectangular shape, a reflector and an acoustic lens that constitute the interior of the acoustic tube in front of the speaker are disposed. In addition, by making the sound tube into a structure capable of integral reed, the productivity of the sound tube can be improved. Embodiment An embodiment of the present invention will be described with reference to the drawings. The same reference numerals as those in FIGS. 3 to 7 denote the same parts. FIG. 1 is a perspective view showing the structure of an acoustic pipe portion in an embodiment of the present invention. In FIG. 1, 11 is a block of an acoustic tube of the first eye composed of an acoustic lens 5, a hole 7, a reflector 6 and the like, and 12 is a rectangular shape constituting the block 11 of the first acoustic tube. The second acoustic tube 03-05-2019 2 block provided via the folding structure 13 provided on one side surface in the long side direction is formed by molding a synthetic resin. The operation of the acoustic tube of the present invention configured as described above will be described using FIG. 1 and FIG. FIG. 2 is a perspective view showing a configuration of a speaker apparatus using an acoustic pipe portion according to an embodiment of the present invention shown in FIG. 1 using a partial cross-sectional view. In the speaker device using the acoustic tube portion of the present invention, the sound absorbing material 9 is inserted on both sides inside the acoustic tube, the sound conduction of the sound wave radiated from the speaker 1 is small in the front portion of the speaker 1 and the opening portion The area is made larger as it approaches. After the sound absorbing material 9 is inserted, the second acoustic pipe block 12 is bent in the direction of arrow E in FIG. 1 with the hinge portion 13 as a fulcrum and combined with the first acoustic pipe block 11. Then, the assembly tube 16 can be easily assembled by fastening the assembly screw 16 to the screw mounting boss 14 through the screw insertion hole 15 in the direction of the break 41 [F. Reference numeral 17 denotes a combination of the first and second blocks of the acoustic tube, which is assembled via an adhesive or a shock absorbing material for preventing the occurrence of flickering due to internal resonance or the like of the acoustic tube. As a result, the speaker device becomes more reliable as an acoustic tube. Thus, the loudspeaker apparatus of the present invention divides the acoustic tube into two blocks 11 and 12 through the hinge portion 13 so that the arrow G.1 in FIG. If the mold is divided in the direction of 8.1, integral molding becomes possible, and it becomes possible to provide a structure having sufficient strength against internal resonance of the acoustic tube, etc. It is possible to realize the improvement of the property and the drastic reduction of the number of assembling steps. As described above, by incorporating the speaker device having the acoustic tube structure according to the present invention into a television set, it is possible to easily realize a small and slim television set and realize a highly reliable television set. It will be As described above, according to the present invention, an acoustic tube for guiding a sound wave having a rectangular opening is disposed on the front of the speaker, and a reflector and an acoustic lens are disposed on the inside of the acoustic tube on the front of the loudspeaker. The structure in which the sound conduction of the sound wave radiated from the speaker is configured so that the area is smaller at the front of the speaker and the area is larger as the opening is approached, and the acoustic tube can be integrally formed, By dividing the middle of the acoustic tube into two blocks and forming the acoustic tube so that assembly of the acoustic tube is easy, one side of the long side of the rectangular shape constituting the acoustic tube is configured to have a winding structure. As a result, it is possible to arrange the acoustic tube into two blocks to form an integral structure, so that the assembly of the acoustic tube is easy. Are those made possible to improve the assembling workability and significant reduction of assembly man-hours can be realized, in which can realize an excellent speaker system more reliable as an acoustic tube. 03-05-2019 3 [0002] Brief description of the drawings [0003] FIG. 1 is a perspective view showing the structure of an acoustic tube portion of a speaker device according to an embodiment of the present invention, and FIG. 2 is a speaker device using an acoustic tube portion according to an embodiment of the present invention shown in FIG. Fig. 3 is a structural conceptual view of a television set incorporating a speaker device using a conventional acoustic tube, and Fig. 4 is a structural conceptual diagram of a speaker device using a conventional acoustic pipe. 5 is a cross-sectional view taken along the line B-B in FIG. 4, FIG. 6 is a cross-sectional view taken along the line C-C in FIG. 4, and FIG. 7 is a cross-sectional view taken along the line D-D in FIG. 5 ········ Acoustic lens, 6 ·················································· First block of the acoustic tube, 12 ··· ... second block constituting the acoustic tube, 13 ...... hinge portion, 14 ...... bis mounting boss 15 ...... screw insertion hole, 16 ... ... · · · · · · · · · · · · · · · · · · · · · · · · · · · combination of the first and second acoustic tube block. 03-05-2019 4
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