JPH0134471Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a small stereo reproduction type speaker equipped with a pair of left and right speaker units that can be quickly converted into a headphone.

[Conventional technology]

A pair of left and right speaker units are separably connected to the left and right sides of a portable receiver, and each speaker unit can be separated from the receiver as necessary so that it can also be used as a headphone. , is known from Japanese Utility Model Publication No. 42-21773.

[The problem that the idea attempts to solve]

However, in the conventional example described above, firstly, since the receiver is interposed in the middle, there is a limit to how compact it can be made, and it is still inconvenient to store or carry when not in use.

Second, in order to enable normal use with speaker units connected together on the left and right sides of the receiver, the sound-producing surface of the built-in speaker body is always exposed at the front of the speaker box of each speaker unit. The speaker body, including the sound-producing surface, is easily damaged by contact with other objects when carried.

Thirdly, when the speaker unit is integrally connected to the receiver, it is not possible to adjust the arrangement angle between the two speaker units, so there are disadvantages and inconveniences such as difficulty in obtaining a desirable stereo reproduction effect.

Therefore, an object of the present invention is to provide a speaker that is compact, easy to store and carry when not in use, and effective in preventing damage to the speaker body.

Another object of the present invention is to provide a speaker that can freely change and adjust the opening angles of the left and right speaker units in a connected state and a separated state, and that can stand alone on a desk or the like to effectively exhibit a stereo reproduction effect. It is in.

Still another object of the present invention is to provide a speaker that can quickly be converted into a headphone when the left and right speaker units are separated.

[Means to solve the problem]

As shown in the figure, the speaker of the present invention has a pair of left and right speaker units 1, 1 each having a speaker body 3 built into a speaker box 2 facing the front thereof. Through a separable hinge 7 provided between the speaker boxes 2 and 2, the front surfaces of both the speaker boxes 2, 2 are pivotally connected to each other so as to be able to open and close freely between a closed position in which they overlap and an open position in which they are expanded to the left and right. The speaker units 1, 1 are connected to each other by a flexibly deformable connecting member 12 whose both ends are slidably and securely engaged with the respective speaker boxes 2, 2.

[Effect]

Since both speaker units 1, 1 are connected by a hinge 7 so as to be rotatable in opening and closing, when not in use, the front sides of each speaker box 2, 2 are placed in a closed position overlapping each other. This prevents the sound-producing surface portion provided on the front surface of each speaker box 2, specifically the earmuffs 25 shown in the drawing, from being exposed to the outside and is protected from contact with other objects. In addition, both speaker units 1,
1 can be adjusted to any desired opening angle and left to stand on its own in a state in which it is connected by a hinge 7 and is fully expanded to the left and right.

Since the hinge 7 is separable, the two speaker units 1, 1 can be positioned widely apart by uncoupling the hinge 7, and are still connected by the connecting member 12 in this state. Since the connecting member 12 is flexibly deformable, both speaker units 1, 1 can be used as they are as a headphone.

[Effect of idea]

As explained above, according to the present invention, both speaker units 1, 1 are in a closed position in which the front surfaces of both speaker boxes 2, 2 overlap each other via the hinge 7 provided between the respective speaker boxes 2, 2, It is pivotally connected so that it can be rotated to open and close between the left and right open positions. Therefore, when not in use, by keeping the front sides of both speaker boxes 2, 2 in a closed position, it is possible to minimize the size and make it convenient to store and carry. It is possible to reliably prevent the sound-producing surface portion and the speaker body 3 facing the same from being damaged by contact with other objects. At this time, the flexible and deformable connecting member 12 does not hinder the opening and closing movement of both speaker units 1, 1 around the hinge.

On the other hand, both speaker units 1, 1 can be adjusted to any opening angle even when they are connected by the hinge 7. At this time, since both speaker units 1, 1 are connected by a hinge 7, each speaker unit 1, 1 serves as a support means to prevent the speaker from falling over, and can be stably left on its own on a desk or the like.

Furthermore, both the speaker units 1, 1 can be placed separately to the left and right via the separable hinge 7, and in this case, both the speaker units 1, 1 are connected to each other by the connecting member 12 which can be flexibly deformed. Therefore, the connecting member 12 assists the independent function of both speaker units 1, 1, and ensures that both speaker units 1, 1 can be set to any desired opening angle.

Therefore, both speaker units 1, 1 are connected to the hinge 7.
Both in the connected state and in the state separated left and right, it is advantageous in preventing it from falling on a desk and standing up on its own, and it also has the advantage that it can be adjusted so that good stereo playback can be obtained even though it is small.

Furthermore, there is a connecting member 12 that connects both speaker units 1, 1 in a slidable and preventive manner.
is flexible and deformable, so this connecting member 12
If the two speaker units 1, 1 are slid apart from each other in the left and right directions above, and the connecting member 12 is flexibly deformed, it can quickly be transformed into a headphone, so in this respect as well, it is convenient because it can be used in both ways.

〔Example〕

The details will be explained based on the drawings. As shown in FIGS. 1 to 4, the speaker of the present invention includes a pair of left and right speaker units 1, 1. Each speaker unit 1 has a speaker body 3 built into a speaker box 2 made of plastic, and a punching metal 5 facing the speaker body 3 is stretched over a concave opening 4 provided at the front of the speaker box 2.

When the two speaker units 1, 1 are arranged side by side, the front sides overlap each other via a separable hinge 7 provided between the side walls 6, 6 of the opposing speaker boxes 2, 2. It is pivotally connected to the unfolded open position so that it can be rotated to open and close. That is, this hinge 7 is a bearing member 7 with a C-shaped cross section provided on one side of the speaker box 2.
a, and a shaft member 7b that is provided on the other speaker box 2 side and engages with the groove of the bearing member 7a, and when both speaker units 1, 1 are expanded to the left and right, the hinge members 7a, 7b are engaged. It is possible to escape. When both speaker units 1, 1 are brought into a closed state with their front surfaces facing each other, both hinge members 7a, 7b are connected, and the convex portion 9 provided on one speaker box 2 is connected to the convex portion 9 provided on the other speaker box 2. The closed state is maintained by the convex-concave fitting with the concave portion 10. The means for maintaining this closed state can be modified in various ways, such as using other latching means or magnetic attraction between the mating surfaces.

Furthermore, both speaker units 1, 1 are connected by upper and lower connecting members 12, 12. This connecting member 12
consists of a band-shaped conductive metal plate that bends and deforms,
Both ends are slidably inserted into transparent slits 13, 13 in the horizontal side walls 6, 6 of each speaker box 2, 2 to prevent them from coming off. Reference numeral 14 denotes retaining pieces provided at both ends of the connecting member 12.

This connecting member 12 connects one speaker box 2
It also serves as a cord for connecting the speaker input terminal 15 in the other speaker box 2 to the speaker body 3 in the other speaker box 2. That is, both speaker boxes 2,
Connecting member 1 is placed near and inside the slits 13 and 13 of No. 2.
2 has contact pieces 16 and 17 that slide into contact with each other. In one speaker box 2 on the side having the speaker input terminal 15, the internal speaker body 3 and the input terminal 1
5 with a lead wire 19, and connect the contact piece 16 in the box 2 with the input terminal 15 with a lead wire 20, and connect the speaker body 3 in the other speaker box 2 with the contact piece 17 in the box 2. are connected with the lead wire 21, and these contact pieces 16, 17
They are electrically connected to each other by a connecting member 12.
A plug 23 of a cord 22 connected to a cassette player is inserted into and removed from the speaker input terminal 15.

Note that an earmuff material 25 made of sponge rubber or the like is attached to the inner periphery of the front opening 4 of each speaker box 2, which improves the contact with the ears and prevents sound from leaking.

In such a case, when storing or carrying when not in use, the left and right speaker units 1, 1 are overlapped with their lids together via the hinge 7, as shown by the imaginary line in Fig. 3, so that the overall size is halved. Become.
The size at this time is approximately the size of a compact cassette, more specifically, the size of a storage case for a compact cassette. When the left and right speaker units 1, 1 are unfolded via the hinge 7 as shown in FIGS. 1 to 3, a stereo reproduction state is established in which both the speaker units 1, 1 are spaced apart from each other on the left and right. At this time, since the hinge 7 is separable, the left and right speaker units 1, 1 can be separated to the left and right as shown in FIG. 5, and placed side by side with a large interval, if necessary.

The speaker of this invention can also be used as a headphone. In this case, as shown in FIG. 7, the speaker units 1, 1 are separated and the connecting member 12 is bent into a U-shape so that the left-right spacing matches the spacing between both ears. At the same time, the connecting member 12 is placed over the head. At this time, if there is a risk that the connecting member 12 may return to its original straight state due to elastic force,
The shape-retaining frame 26 formed in advance into a U shape is connected to the connecting member 1.
2 and use it. However, it is preferable that the connecting member 12 be made of a member that maintains a flexurally deformed state, and that the shape-retaining frame 26 is not required.

Further, the connecting member 12 may be non-conductive, and in this case, a separate conductive material such as an elastic cord may be provided, or the speaker input terminal 15 may also be provided on the other speaker unit. . Note that even one connecting member 12 is necessary and sufficient.

[Brief explanation of drawings]

The drawings show an embodiment of the speaker according to the present invention, in which Fig. 1 is a perspective view in the unfolded state, Fig. 2 is a partially cutaway front view in the unfolded state, and Fig. 3 is a partially cutaway front view in the unfolded state. A partially cutaway plan view, FIGS. 4 and 5 are perspective views showing usage as a speaker;
FIG. 6 is a partially cutaway perspective view of the speaker unit, and FIG. 7 is a perspective view showing how it is used as a headphone. 1...Speaker unit, 2...Speaker box, 3...Speaker body, 7...Hinge, 12
...Connection member.

Claims (1)

[Scope of Claim for Utility Model Registration] A speaker box 2 has a pair of left and right speaker units 1, 1 each having a built-in speaker body 3 facing the front thereof, and both speaker units 1, 1 are connected to their respective speaker boxes 2, 2. Via a separable hinge 7 provided in between, the front surfaces of both speaker boxes 2, 2 are pivotally connected to each other so as to be able to open and close freely between a closed position where they overlap and an open position where they are expanded from side to side. A speaker equipped with a headphone function, characterized in that both speaker units 1, 1 are connected to each other by a flexible connecting member 12 whose both ends are slidably and securely locked to each speaker box 2, 2. .