JPH0617419Y2 - Speaker box connection structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a connecting structure for a plurality of speaker boxes.

(B) Conventional Technology Conventionally, there is known a speaker device in which a plurality of speaker boxes are rotatably connected to each other. In such a speaker device, a single speaker unit is housed in an independent speaker box,
By pivotally attaching each speaker unit to each other so that the emission axis direction of the speaker unit is different,
The radiation range of sound waves is varied.

(C) Problem to be solved by the invention In such a speaker device, there is a problem that it is difficult to connect the speaker boxes. That is, in order for each speaker box to rotate smoothly, it is sufficient to loosen the connection between the speaker boxes, but this causes a problem that a gap is created in the connection part and the airtightness of the speaker box is reduced. This is because, if the connection between the speaker boxes is strengthened in order to eliminate this gap, the problem that the rotation of each speaker box cannot be performed smoothly occurs.

(D) Means for Solving the Problems In order to solve the above problems, the present invention provides a speaker box connecting structure in which at least a pair of speaker boxes are layered, and the speaker boxes are respectively provided on surfaces facing each other. An inside of one speaker box having a through-hole portion, having a substantially cylindrical throat portion, a collar portion formed at one end of the throat portion, and a locking hook portion formed at the other end of the throat portion. From the outside of the other speaker box through the through hole to connect the speaker boxes to each other, and a tubular portion inserted into the inner diameter of the throat of the connecting member. And a retaining member that has a locking claw portion formed at one end of the tubular portion and that prevents the connecting member from falling off, and the through hole between the surfaces facing each of the speaker boxes. Of is to St. propose a coupling structure configured speaker box in an airtight member disposed along the periphery.

(E) Operation Since the speaker boxes are connected to each other by the connecting member and the airtight member keeps the airtightness of each speaker box at the connecting portion, the rotating operation of each speaker box is smooth. In addition, the retaining member prevents the connecting member from coming off.

(F) Embodiment An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, (1) is a first speaker box, (2) is a second speaker box, (3) is an airtight ring arranged between the speaker boxes,
(4) is a connecting member, and (5) is a retaining member. Before connecting the first speaker box (1) (2) and the second speaker box (2), the back surfaces are open, and after connecting the speaker boxes, a separate back plate (not shown) is attached. Will be completed. The airtight ring (3) is a receiving part (3a).
And the airtight rib (3b) are formed, and as this material, a soft material with little friction, such as Duracon, is suitable. The connecting member (4) is inserted into the first speaker box (1) from the inside through the through hole (1a) provided in the first speaker box (1) as desired. It is a member that is inserted into the through hole portion (2a) provided in the second speaker box (2) and connects the first speaker box (1) and the second speaker box (2). The structure of the connecting member (4) will be described below.
(a) is the collar part, (4b) is the throat part, (4c). ． ． Is a locking hook portion provided on the throat portion (4b). Further, the retaining member (5) is a member for preventing the connecting member (4) from coming off, and its structure is a cylindrical portion (5a) inserted into the inner diameter of the throat portion (4b) of the connecting member (4). And a locking claw portion (5b) provided on the tubular portion (5a). ． ． And consists of. Further, an airtight rib (2b) extending outward from the through hole (2a) is formed in the through hole (2a) of the second speaker box (2), and further, a supporting rib (2c) is provided around the airtight rib (2c). ) (2d) and the outer peripheral rib (2e) are formed.

Next, a method of assembling the speaker box in the present invention will be described.

First, with the rear surface of each speaker box open, the airtight rib (2b) of the second speaker box (2) is inserted into the airtight ring (3), and the airtight ring (3) supports the rib (2c).
Place it so that it is supported by (2d). Next, in the first speaker box (1), in the through hole (1a), the airtight rib (2b) of the second speaker box (2) and the airtight rib of the airtight ring (3).
Place it on the second speaker box (2) so that (3b) is inserted. Then, the connecting member (4) is inserted from the inside of the first speaker box (1) into the through hole portion (2a) of the second speaker box (2) through the throat portion (4b), and the connecting member (4) is inserted.
Each locking hook part (4c). ． ． Push it in until it hangs around the through hole (2a) of the second speaker box (2). Finally, insert the retaining member (5) from the inside of the second speaker box (2) into the inner diameter of the throat portion (4b) of the connecting member (4),
Locking claw (5b) of the retaining member (5). ． ． Push it until it engages with the collar (4a) of the connecting member (4). In this way, the first speaker box (1) and the second speaker box (2) are connected by the connecting member (4), and the airtightness of each speaker box is maintained by the airtight ring (3) at the connecting portion. At the same time, the turning operation of each speaker box is made smooth, and the connecting member (4) is prevented from coming off by the retaining member (5). As described above, since the assembly of the connecting portions of the respective speaker boxes according to the present invention is a fitting type, no special jig or tool is required, which is convenient for mass production.

Also, FIG. 3 shows the speaker box of the present invention as an arm member.
An example of using (6) to hang it from the ceiling is shown. In such a usage situation, the weight of the speaker box located on the lower side easily causes a gap in the connecting portion,
With the connection structure of the present invention, the airtight rib (3) of the airtight ring (3)
Since b) extends to the inside of the through hole portion (1a) of the first speaker box (1), even if some rattling occurs in the vertical direction, the airtightness at the connecting portion can be sufficiently maintained. still,
Although the connection of two speaker boxes has been described in the present embodiment, it is easy to connect three or more speaker boxes with the same structure.

(G) Effect of the Invention As described above, according to the present invention, there is provided a speaker box connecting structure in which at least a pair of speaker boxes are layered, and the through holes are formed on the surfaces of the speaker boxes facing each other. Is provided with a substantially cylindrical throat portion, a collar portion formed at one end of the throat portion, and a locking hook portion formed at the other end of the throat portion, and the through hole is provided from the inside of one speaker box. A connecting member that is inserted through the hole portion and is inserted from the outside of the other speaker box through the through hole portion to connect the speaker boxes, a tubular portion that is inserted into the inner diameter of the throat portion of the connecting member, and A retaining member that has a locking claw portion formed at one end of the tubular portion and that prevents the connecting member from falling off, and is disposed along the periphery of the through hole between the surfaces facing the speaker boxes. Since was composed of a gas-tight member can hold airtightness in the connection portion with each speaker box is rotatably connected.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing the structure of the speaker box of the present invention, FIG. 2 is a sectional view showing a connecting structure of the speaker boxes, and FIG. 3 is a perspective view showing an example of using the speaker box of the present invention. is there. (1) …… first speaker box, (1a) …… through hole,
(2) …… Second speaker box, (2a) …… Through hole,
(3) …… Airtight ring, (4) …… Coupling member, (4a) …… Bill part,
(4b) …… Throat part, (4c) …… Locking hook part, (5) ……
Detachment prevention member, (5a) …… Cylinder part, (5b) …… Locking claw part.

Claims (1)

[Scope of utility model registration request] 1. A structure for connecting speaker boxes, in which at least a pair of speaker boxes are layered, wherein through holes are provided on respective surfaces of the speaker boxes facing each other, and a substantially cylindrical throat portion, and the throat portion. Has a flange portion formed at one end of the speaker box and a locking hook portion formed at the other end of the throat section, and is inserted from the inside of one speaker box through the through hole section to the outside of the other speaker box. A connecting member inserted through the through hole to connect the speaker boxes to each other, a tubular portion inserted into the inner diameter of the throat portion of the connecting member, and a locking claw portion formed at one end of the tubular portion. And a sealing member configured to prevent the connecting member from falling off and an airtight member arranged along the periphery of the through hole between the surfaces of the speaker boxes facing each other. The connection structure of the car box.