JPS60167594A - Speaker device - Google Patents

Abstract

PURPOSE:To adjust the directivity of a speaker by rotating a cabinet in the circumferential direction and constituting a speaker so that a cabinet can be freely detached in a speaker system obtained by overlapping at least one cabinet containing the speaker, etc. CONSTITUTION:A spherical stopper 16 to prevent, for instance, the rotation is fit in the lower part 7 which becomes the upper part of a cabinet 5 to be overlapped in a cylindrical shape. The stopper 16 is fit in the upper part 6 which becomes the lower part in said cabinet 5. The prescribed number of stopping grooves are provided on a guide rail 15, and by increasing or decreasing the number of the stopping grooves on the guide rail 15, the control and the fine or coarse adjustment of the rotational range of the cabinet 5 in the direction of the circumference is made optionally by an audience. The spherical stopper 16 to prevent the rotation can suppress the rotation in the circumference direction of the cabinet 5, and the directivity of a speaker can be freely oriented to the position favorable to the audience in the fine tuning range.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention enables the cabinet to be rotated in any direction by enabling circumferential rotation of the cabinet so that directivity adjustments in the loudspeakers can be performed. The present invention relates to a speaker device in which a cabinet can be freely attached and detached in order to change the direction of the speakers, the number of speakers, or their arrangement.

[Prior art]

Conventionally, a speaker device has been constructed as shown in FIG.

In the figure, 1 is a speaker for reproducing high-pitched sounds, 2 is a speaker for reproducing low-pitched sounds, 3 is a front baffle provided with a speaker 1 for reproducing high-pitched sounds and a speaker 1 for reproducing low frequencies, 4
is a cabinet. The high-frequency sound reproduction speaker 1 and the low-frequency sound reproduction speaker 2 are fixed to the front baffle 3 with screws or the like.

The conventional speaker device is configured as described above, and for example, on the front axis of the front 1h1 baffle 3 where the speaker is being interrogated, the reproduced sound can be heard faithfully.

However, the direction in which the reproduced sound is faithfully reproduced is only one direction on the front axis of the front baffle 3, and due to the directivity of the speaker, the sound can be reproduced with the same characteristics in any direction in the cabinet 4. It was impossible to reproduce.

In order to reproduce the speakers in an omnidirectional and substantially equal L7 state, the speakers were arranged on the front and rear surfaces of the cabinet 4, or on the front and rear sides of the cabinet 4.
Since the external dimensions or internal volume of the device must be increased, the locations where it can be installed are limited.

Another method has been tried, which is to add a diffuser in front of the speaker to provide omnidirectionality. It had drawbacks such as difficulty in maintaining the balance.

1 in the speaker installed in the cabinet mentioned above.
Although it is possible to make the directivity in the horizontal direction somewhat omnidirectional, it is difficult to adjust the directivity in the vertical direction.

[Summary of the Invention] The present invention has been made for the purpose of improving the various drawbacks mentioned above. For example, in a speaker system configured with a predetermined number (plurality) of speakers, By storing the speaker in each cabinet, the position of each speaker can be freely changed to match the indoor situation desired by the listener or the desired position of the listener. The present invention proposes a speaker device that can easily adjust the directivity of the reproduced sound and can obtain the most appropriate reproduction sound field.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 2 is a perspective view showing an embodiment of the present invention, Fig. 3 is a perspective view showing constituent members in an embodiment of the invention, and Fig. 4 is an enlarged sectional view of a speaker device showing an embodiment of the invention. , 5th
The figure is a perspective view of a speaker system showing one embodiment of the present invention.

In these figures, 5 is a cabinet formed into a cylindrical shape, 6 is an upper surface of the cylindrical cabinet 5, 7 is a lower surface of the cylindrical cabinet 5, and 8 is a cylindrical cabinet. 5 is a space provided in the space, 9 speakers are housed in the above space, 10 is an air core provided in the center of the cylindrical cabinet 5, and 11 is a rotating shaft housed in the air core. A main body, 12 is a fastener provided on the rotating shaft 11, for example, a part that becomes a thread trough; 13 is a fastener provided on the rotating shaft 11, for example, a part that becomes a thread ridge; 14 is a toric shape; A U-shaped recess 15 is recessed in either the upper surface 6 or the lower surface 7 of the cylindrical cabinet 5, and the recess 15 is housed inside the U-shaped recess 14. 16 is a spherical stopper installed at a predetermined location (multiple locations) in the U-shaped recess 14 to prevent rotation; 17 is a spherical stopper for preventing rotation; An elastic member such as a spring material for holding the spherical stopper 16; 18 is a decorative head plate;
9 is a makeup rotating table.

Next, the operation of the speaker device configured as described above will be explained.

As shown in FIG. 2, when a speaker system is constructed by stacking a predetermined number (plurality) of cylindrical cabinets 5, a cylindrical cabinet is a lower layer of the stacked cylindrical cabinets 5. The main body 11 of the rotating shaft is inserted into the air core lO provided in the center of the rotating shaft 11, and the fastener provided on the rotating shaft 11, for example, the portion 1 that becomes the thread of the screw.
3 into the portion 12 that becomes the valley of the screw, the number of rotating shafts 11 is increased. By inserting the rotary shaft 11 into the air core 10 provided in the cylindrical cabinet 5, it is possible to increase the number of υ cylindrical cabinets 5.

Contrary to the above case, the stacked cylindrical cabinets 5 are removed, and the rotating shaft 11 housed in the air core 10 provided in the cylindrical cabinet 5 is fastened with a fastener, for example, a screw 12. By removing p by 13 degrees, it is possible to reduce the number of cabinets 5 having a cylindrical shape, and as a result, it is also possible to reduce the number of speakers.

By increasing or decreasing the number of rotating shafts 11, it is possible to increase or decrease the number of cylindrical cabinets 5 corresponding to the number of rotating shafts 11.

Next, when the cylindrical cabinets 5 are stacked, a stopper having a spherical shape, for example, is recessed in the lower surface part 7 to prevent rotation of the stacked cylindrical cabinets 5. Reference numeral 16 denotes a guide rail 1 recessed in the upper surface portion 6 of the stacked cylindrical cabinet 5, which is provided with a stopper groove, for example.
5, it forms a spherical shape to prevent the above-mentioned rotation, and when the stop horn + 16 is stored in the stop groove in the guide rail 15 provided with the above-mentioned stop groove, it prevents movement in the circumferential direction of the cabinet 5. The range in which rotation is possible is controlled and adjusted. The above stop groove is guide rail 1
By adjusting the number of stop grooves provided in the guide rail 15, the rotation range in the circumferential direction of the cabinet 50 can be controlled and adjusted. This makes it possible for people to do so at their discretion.

When the spherical stopper 16 for preventing rotation is moved on or stored on the force idle rail 15 provided with a stopper groove, it suppresses the rotation of the cabinet 5 in the circumferential direction and improves the directivity of the speaker. This makes it possible to freely direct the listener to a desired location within a very small range.

FIG. 3 is a perspective view showing the rotation axis.

FIG. 4 is a sectional view showing one embodiment of the present invention, which is constructed with a simple structure as described above.

FIG. 5 is a perspective view showing an example of an actually constructed speaker system.

The figure shows a full-range speaker housed inside a single cylindrical cabinet 5, with a cosmetic head plate 18 installed at the top and a cosmetic rotary table 19'lk installed at the bottom. The exterior is configured and the speakers are up to 120
It opens in degrees and covers all directions (360°).
It aims to be omnidirectional.

In addition, in the above-mentioned embodiment, the guide rail 15 provided with a stopper groove, the spherical stop to prevent rotation,
1 set of 92 f16'ii pieces, and 1
One rotation shaft 11'fr is added to correspond to each cabinet 15 having a cylindrical shape, making one combination. In this combination, the number of guide rails 15 provided with stopper grooves and spherical stones 16 for preventing rotation may be adjusted. Further, the direction in which they are provided may be reversed. That is, it may be provided in any direction. Even with this configuration, it is possible to obtain similar effects.

Figure 6 shows the shape when the number of pairs of the guide rail 15 provided with a stopper groove and the stopper 16 forming a spherical shape for preventing rotation is increased by one, and the horizontal shape is relatively large. Suitable for cabinet 5.

FIG. 7 shows a modification of the arrangement shown in FIG. 6, in which one set of guide rails 15 provided with stops 11ij and one set of spherical stoppers 16 for preventing rotation are added, and the stops 1
The guide rail 15 provided with 11I and the spherical stopper 16 for preventing rotation are turned upside down, and
A large cabinet 5, which is alternately recessed.
Suitable for those that require better control and adjustment of speaker directivity.

Note that the number of guide rails 15 provided with stopper grooves and the number of guide rails recessed in the spherical stock/f16Th cabinet 5 for preventing rotation may be as shown in FIG. 6 or 7 or as otherwise explained. However, the number of speakers can be freely increased or decreased depending on the shape and size of the cabinet 5 or the accuracy of the directivity of the speakers.

Although FIG. 5 shows a case in which three cabinets 5 are stacked, the number of stacked cabinets 5 is not limited to this number, nor is it related to the type of speakers. It is possible to use a speaker device.

Moreover, although the cabinet 5 incorporating the speaker device has been described as having a cylindrical shape, since it is formed in a cylindrical shape, the diffraction of sound that conventionally occurs at the corners of the cabinet 4, etc., which has a rectangular parallelepiped shape has been described. , it becomes possible to reduce the number of elephants.

Furthermore, when a system is constructed by arranging a plurality of speakers in a conventional cabinet 4 (for example, a 4-way system), the volume of the cabinet 4 inevitably increases and the weight increases, so moving the cabinet 4 is difficult. However, by using the speaker installation fI/l mentioned above, it is possible to separate the cabinet 5 separately, so it is easy to transport or set it. It no longer requires as much effort as before.

As described above, in the embodiment of the present invention, the above-described speaker device is provided in the cabinet 5 having a cylindrical shape, but the shape of the cabinet 5 is not limited to the above-mentioned shape, and can be formed in various shapes. It is possible to use it by

FIG. 8 shows a large number of cabinets 5 each having a cylindrical shape.

7jL layer and is a perspective view of a speaker system that can be used in a wide place such as a hall.

9 and 10 are perspective views of a speaker system configured with a cabinet 5 having a shape other than a cylindrical shape.

In the above explanation, the case where the embodiment of the present invention is housed in a cabinet equipped with a speaker and used is described, but the present invention is not limited to a cabinet equipped with a speaker, and can be applied to other devices. Vt (it is clear that it is possible.

〔Effect of the invention〕

In addition to the above, the present invention incorporates a member that allows the cabinet to rotate and suppresses this rotation throughout the entire periphery of the upper and lower surfaces of the cabinet and in the center of the cabinet. With this, it is possible to control and adjust the directivity of the speaker, and it is also possible to increase or decrease the number of cabinets, and to freely attach and detach cabinets, which is an excellent effect. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the appearance of a conventional speaker device;
Fig. 2 is a perspective view showing an embodiment of the present invention, Fig. 3 is a perspective view showing members constituting the embodiment of the invention, and Fig. 4 is an enlarged view of a speaker device showing an embodiment of the invention. 5 is a perspective view of a speaker system showing one embodiment of the present invention, FIGS. 6 and 7 are sectional views showing other embodiments of the present invention, and FIG. 8 is a speaker device of the present invention. FIG. 9 and FIG. 10 are perspective views showing other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1...Speaker for high frequency reproduction, 2...Speaker for bass reproduction, 5...Cabinet, 6...Upper surface of cabinet, 7...Lower surface of cabinet, 1o...Air core portion, 11 ... Rotating shaft, 14... U-shaped recess, 15... Guide rail provided with a stop groove, 16...
Spherical stone for preventing rotation/f. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Masuo Oiwa Figure 4 Figure 5 Figure 8 Figure 8 Figure 9 Figure 10 Figure 2 ■ Procedural amendment (voluntary) 1. Indication of the case Japanese Patent Application No. 59-23381 2. Name of the invention Speaker device 3 , Section 111 of the representative of the person making the amendment, Section 5, Claims of the specification to be amended, and the scope of claims of the description of the content of the amendment are corrected in Appendix 9. L Amendment of List of Attached Documents Claims 1 copy 2, Claims (1) In a speaker system configured by stacking at least one cabinet containing speakers, etc., the cabinet is Storm rotating in direction?
A speaker device characterized in that the cabinet is configured to be freely attachable and detachable. (2) The speaker device according to claim 1, wherein the speaker device includes a cylindrical air core provided in the center of the cabinet. (3) In the speaker device, a rotating shaft having a cylindrical shape that can be housed in the air core portion is housed in the speaker device as claimed in claim 1 or 2. The speaker device described in section. (4) In the speaker device, a U-shaped recess formed in a toric shape is recessed over the entire periphery of the upper and lower surfaces of the cabinet, and one of the recesses forming a shell 7 shape is recessed. 2. The speaker device according to claim 1, wherein a guide rail provided with a stopper groove is housed, and a spherical stopper for preventing rotation is housed on the other side. (5) In the speaker device, the height of the outer shape of the rotating shaft is equal to the vertical height of the cabinet (the length of the air core for housing the rotating shaft). , the speaker device according to any one of Items 2 and 3. (6) In the speaker device, a predetermined number (plurality) of stop grooves are provided on the circumference at predetermined intervals and at equal intervals. The speaker device described in section. (7) The speaker device according to claim 4 or 6, wherein the stopper groove provided in the guide rail has a hemispherical shape. (8) In the speaker device, a predetermined number (plurality) of spherical stoppers for preventing the rotation are arranged at equal intervals. speaker device. (9) In the speaker device, only one guide rail provided with the stop groove and one spherical stop arm for preventing rotation are combined to form a set. The speaker device according to scope 1 or 4. QO In the speaker device, the number of rotating shafts and the number of cabinets correspond one to one, according to any one of claims 1, 3, and 5. speaker device. QυIn the speaker device, there is at least one combination of the guide rail provided with the stop groove and the spherical stopper for preventing rotation. The speaker device according to item 1. (2) In the speaker device, when the guide rail provided with the stop groove and the spherical stop arm for preventing rotation are recessed into the upper and lower surfaces of the cabinet, the guide 1/- 10. The speaker device according to claim 4, wherein any of the stopper and the stopper may be recessed into the upper surface portion and the lower surface portion. 2. The speaker device according to claim 1, wherein the cabinet has a cylindrical outer shape.

Claims (1)

[Claims] In a speaker system configured by stacking at least one cabinet containing ill speakers, etc., the cabinet can be freely attached and detached by rotating the cabinet in a circumferential direction. A speaker device characterized in that it is configured as follows. (2+The speaker device according to claim 1, characterized in that the speaker device is provided with a cylindrical air core portion in the center of the cabinet. (3; In the speaker device, the air core portion The speaker device according to claim 1 or 2, characterized in that the speaker device houses a rotating shaft having a cylindrical shape that can be housed in the speaker. In the device, a U-shaped recess formed in a toric shape is recessed all around the upper and lower surfaces of the cabinet, and a stopper groove is provided in one of the U-shaped recesses. The speaker device according to claim 1, characterized in that the provided guide rail is housed, and the other side is housed with a spherical stopper for preventing rotation. (6) In the speaker device M, the retaining groove provided in the guide rail is set to a predetermined height. The speaker device according to claim 4, characterized in that a predetermined number (a plurality of speakers) are provided on the circumference at equal intervals and at equal intervals. The speaker device according to claim 4 or 6, characterized in that the shape of the retaining groove is hemispherical. (8) In the speaker device, a spherical shape for preventing the rotation. A speaker device according to claim 4, characterized in that a predetermined number (plurality) of stoppers are arranged at equal intervals. (9) In the speaker device, a guide provided with the stopper groove. The speaker device according to claim 1 or 4, characterized in that only one rail and one spherical stone for preventing rotation are combined to form a set. The speaker according to any one of claims 1, 3, and 5, wherein in the speaker device, the number of rotating shafts and the number of cabinets have a one-to-one correspondence. Device. A patent characterized in that in the speaker device, there is at least one combination of a guide rail provided with the stop #lI! and a spherical stopper for preventing rotation. The speaker device R6a3 according to claim 1, wherein the guide rail provided with the stopper groove and the spherical stopper for preventing rotation are recessed into the upper and lower surfaces of the cabinet. In this case, between the guide rail and the stopper, e=
9. The speaker device according to claim 4, wherein either of the upper surface portion and the lower surface portion may be recessed. 0 East The speaker device according to claim 1, wherein the cabinet has a cylindrical outer shape.