JPS6319996Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is a portable type that integrally combines left and right speaker boxes and an electronic device that drives the speakers in the left and right speaker boxes for convenient portability. The present invention relates to audio equipment, and particularly to improvements in the coupling structure between left and right speaker boxes and electronic devices.

[Technical background of the invention] Portable audio equipment, such as a cassette tape recorder with a radio (hereinafter simply referred to as a radio-cassette player), is constructed by housing left and right speakers and an electronic circuit that drives the speakers in a single housing. However, since there is a limit to the external dimensions of the housing and it is difficult to increase the size, separation of left and right stereo sounds and dynamic range are insufficient.

Therefore, in recent years, high-end models that emphasize separation of left and right stereo audio and dynamic range,
As shown in FIG. 1, left and right speaker boxes 3 and 4 housing left and right speakers 1 and 2 are connected horizontally, and an electronic device 5 housing an electronic circuit is installed on these left and right speaker boxes 3 and 4. There is a demand for a structure in which the left and right speaker boxes 3, 4 and the electronic device 5 are stacked and integrally connected in a separable manner.

This radio cassette player can be carried by a handle 6 attached to the electronic device 5, and depending on the purpose of use, the left and right speaker boxes 3, 4 can be removed from the electronic device 5 and used at a desired distance left and right. .

[Problems with the Background Art] However, the radio cassette player configured in this way has left and right speaker boxes 3, 4 and an electronic device 5.
If they are not firmly connected, the left and right speaker boxes 3 and 4 may fall off from the electronic device 5 due to their own weight, causing damage due to rattling.

In particular, if the adjacent upper ends of the left and right speaker boxes 3 and 4 are not sufficiently connected to the center of the bottom surface of the electronic device 5, the connected left and right speaker boxes 3 and 4 will easily separate. Since the left and right speaker boxes 3, 4 and the lower surfaces of the electronic device 5 are parallel and face each other with a narrow interval, a strong connection is made between the adjacent upper ends of the left and right speaker boxes 3, 4 and the center of the lower surface of the electronic device 5. It has been difficult to obtain a suitable connection with a simple structure and assembly operation.

[Purpose of the invention] The present invention was made to deal with this situation, and it is designed to ensure a reliable connection between the left and right speaker boxes and the electronic device, to prevent disconnection or looseness, and to have a simple structure. The purpose is to provide portable audio equipment that can be easily combined and separated.

[Summary of the invention] In order to achieve this objective, the present invention is a portable audio device that integrally combines left and right speaker boxes and an electronic device that drives the speakers in the left and right speaker boxes in a portable manner. In this case, an engaging means is provided in the center of the electronic device so as to be slidable in the front and back direction, and a guiding means and an engaging means that straddles the guiding means are provided at the edges of the left and right speaker boxes, so that the electronic device and the left and right positioning the engaging means of the electronic device in the guiding means of the speaker box in a state where the speaker boxes are combined;
The electronic device 5 and the left and right speaker boxes are connected by sliding the engaging means of the electronic device to engage the engaging means of the left and right speaker boxes.

[Example of the invention] The details of the invention will be described below. Note that a radio cassette player will be described as an example of a portable audio device.

Figure 2 shows the left speaker box 3 that makes up the radio cassette player, and Figure 3 shows the right speaker box 4.
This shows that.

The left speaker box 3 has a rectangular parallelepiped shape in which the speaker 1 is housed facing forward, and two types of engaging members 8 and 9 are protruded from one side surface 7 (on the right side in the figure) when placed horizontally. ing. One engaging member 8
consists of a plurality of engagement protrusions 10 with a rectangular cross section that protrude slightly inward from the front surface of the left speaker box 3 and parallel to the front surface at equal intervals. Note that the distance between the engaging protrusions 10 is equal to the length of the engaging protrusions 10.

The other coupling member 9 is connected to the left speaker box 3.
It consists of engagement protrusions 11 with a rectangular cross section that protrude slightly inward from the back surface along the back surface, and these engagement protrusions 11 have the same length and are connected in a staggered manner offset back and forth by the width of the engagement protrusions 11. has been done.

Also, the side surface 7 of the left speaker box 3
An insertion hole 13 is provided at the ridge of the upper surface 12, that is, at the upper end.
A locking metal fitting 14, which will be described later, is attached to the side surface 15 opposite to the side surface 7, and a latching metal fitting 16, which constitutes a clamp mechanism 41, which will be described later, is attached to a side surface 15 opposite to the side surface 7 and a ridge portion of the top surface 12.

The right speaker box 4 houses the speaker 2 facing forward and has a symmetrical shape to the left speaker box 3, so it is one side (left side in the figure) when placed horizontally.
Two types of engagement members 18 and 19 are provided protrudingly from the side surface 17 of. One of the engaging members 18 is a plurality of engagement members 18 that are protruded from the front surface of the right speaker box 4 slightly inside and parallel to the same at equal intervals.
It consists of a plurality of engaging protrusions 20 having the same shape as the engaging protrusions 10, and the spacing between the engaging protrusions 20 is the same length as the engaging protrusions 10 of the left speaker box 3.
The pitches are shifted so that 0 fits perfectly.

The other engaging member 19 is provided to protrude slightly inwardly and along the back side of the right speaker box 3,
It consists of two engaging protrusions 21 having the same shape as the engaging protrusions 11 of the left speaker box 3. These engaging protrusions 21 have the same length, and the engaging protrusions 21 of the left speaker box 3 have the same width. They are arranged in a zigzag pattern in which they are connected and shifted back and forth in the opposite direction to the connecting ridges 11.

Therefore, when the left and right speaker boxes 3, 4 are combined so that the side surfaces 7, 17, that is, the opposing surfaces are aligned, the engaging protrusion 10 or 20 of one speaker box will engage with the other, as shown in FIG. The engaging protrusions 10 and 20 of the speaker box are fitted into each other and the engaging protrusions 11 and 21 are engaged, and the engaging protrusions 10 and 20 engage the left and right speaker boxes 3 and 4. movement in the vertical (arrow A) direction is restricted, and the engagement convex shapes 11, 21
Movement in the front and back (arrow B) direction is restricted by.

In addition, the side 1 of the right speaker box 4
7 and the ridge of the upper surface 22, that is, the upper end adjacent to the upper end of the left speaker box 3, is provided with the engaging metal fitting 1.
4, an engaging metal fitting 24 having an insertion hole 23 is attached, and a latching metal fitting 26 constituting a clamp mechanism 41 to be described later is attached to a side surface 25 opposite to the side surface 17 and a ridge of the upper surface 22. There is.

FIG. 5 shows the mounting structure of the engaging metal fitting 14 in the left speaker box 3. As shown in FIG. In the figure, a guide hole 27 (described later) is formed at the upper end of the left speaker box 3, and the engaging metal fitting 14 having the insertion hole 13 opens the latter half of the guide hole 27 through the insertion hole 13, and the front half It is screwed down with a screw 28 so as to cover it. This engaging metal fitting 1
4 is screwed into a step formed around the guide hole 27 so that its surface does not protrude from the side surface 7 and top surface 12 of the left speaker box 3.

Reference numeral 29 in the figure is a recess formed in the upper surface 12 of the left speaker box 3. Although one recess is shown for convenience, a plurality of recesses are formed in both the left and right speaker boxes 3 and 4.

Note that the right speaker box 4 also has a guide hole formed and a latch 24 fixed with a screw, but it is arranged symmetrically adjacent to the left speaker box 3 (see Fig. 7). ) Illustrations are omitted.

Figure 6 shows the above left and right speaker boxes 3 and 4.
This is an exploded view of the lower surface of an electronic device 5 containing an electronic circuit for driving the speakers 1 and 2, and the coupling means arranged at the center of the lower surface.

A plurality of protrusions 30 are provided on the lower surface of the electronic device 5 to fit into the recesses 29 on the upper surfaces of the left and right speaker boxes 3 and 4, and a plurality of convex portions 30 are provided in the center of the lower surface from near the front (lower side in the figure) to the rear surface ( A mounting recess 31 having a base portion at the bottom is formed extending upward (in the figure). A leaf spring 33 having an obliquely bent spring part 33a is screwed onto the base part 32 of the mounting recess 31, and a guide cover 35 is mounted in the mounting recess 31 to cover the slide plate 34 placed thereon. It is being

The guide cover 35 is formed to have a U-shaped cross section, is placed over the base part 32, and is screwed to the mounting recess 31 on both sides of the base part 32.
It has a window portion 36 on the opposite side.

The slide plate 34 disposed between the base portion 32 and the guide cover 35 is bent into a crank shape from the middle, protrudes from the window portion 36 of the guide cover 35, and extends toward the front of the electronic device 5. The tip has two engaging pieces 37 that protrude in parallel.

In addition, upright pieces 38 are provided on both sides of the portion of the slide plate 34 that protrudes from the guide cover 35, and at the tip of the upright pieces 38, there are support pieces 3 bent outward.
9 is extended and abuts on the inside of the guide cover 35. The width of the rising piece 38 (width in the vertical direction in the figure) is approximately 1/1/2 of the width of the window 36 of the guide cover 35.
The guide cover 35 can be slid in the front and rear directions. Note that a knob 40 is attached to the other end (rear part) of the slide plate 34 protruding from the back surface of the electronic device 5.

Then, when the slide plate 34 is pulled backward, the slide plate 34
The portion of the guide cover 35 that protrudes from the window 36 is inserted into the guide hole through the insertion holes 13, 23 of the engagement fittings 14, 24 at the adjacent upper ends of the left and right speaker boxes 3, 4. .

8 and 9 show a clamping mechanism 4 that connects the outside of the right speaker box 4 and the electronic device 5.
1. Note that the connection between the left speaker box 3 and the electronic device 5 is the same, so illustration thereof is omitted.

As shown in the figure, the clamp mechanism 41 includes a latch 26 attached to the right speaker box 4 and a latch 4 attached to the housing 42 of the electronic device 5.
It is composed of 3.

The latch fitting 26 is attached to a lever 4 having a hook member 44.
5 is rotatably supported, and the right speaker box 4
It is screwed with screws 28 to an L-shaped closing plate 48 that closes from the inside a mounting hole 47 formed in the outer side surface 46 and the ridge of the top surface 22 so as to span these two sides.

This mounting hole 47 is connected to a holding groove 50 formed by a holding piece 49 provided inside the right speaker box 4 and integrally with this right speaker box 4.
The speaker box 4 is fitted into the speaker box 4 to close the mounting hole 47 and maintain airtightness of the speaker box 4.

The other latch 43 attached to the electronic device 5
is a recess 5 formed at the bottom of the side surface 51 of the housing 28.
2, and is screwed with a screw 28 with a hook groove 53 formed at the tip facing the right speaker box 4 side. In addition to being screwed directly to the casing 28, the latching fitting 43 may be attached by applying an auxiliary member such as the above-mentioned closing plate 48 from the inside if the casing 28 is thin.

This clamp mechanism 41 raises the lever 45 of the latching fitting 26 of the right speaker box 4 and attaches the hooking member 44 to the latching groove 53 of the latching fitting 43 of the electronic device 5.
When the lever 45 is pushed down, the right speaker box 4 and the electronic device 5 are connected.

Engaging metal fitting 2 attached to right speaker box 4
4 and the latching metal fittings 26 are formed in a similar structure not only at the ridges spanning the side surfaces 17, 46 and the top surface 22, but also at the ridges spanning the sides 17, 46 and the bottom surface 54, as shown in FIG. Is possible. The illustration of the lever 48 of the latch fitting 26 is omitted.

In FIG. 10, reference numeral 55 is a closing plate that closes the mounting hole 47 of the speaker box from the inside.
A retaining groove 50 also formed by the retaining piece 49
is embedded in. A fitting 56 having a guide hole 27 is attached to the closing plate 55, and the engaging metal fitting 24 is screwed to this fitting 56.

If the engaging metal fittings 24 and the latching metal fittings 26 are arranged on the opposing ridges in this way, the left and right speaker boxes 3 and 4 can be used as either the left or right side speaker boxes without distinguishing between them.

Next, the assembly order of the radio cassette player of the present invention is shown in Figure 7.
This will be explained based on FIGS. 11 and 12.

First, as shown in FIG. 11, the left and right speaker boxes 3 and 4 are connected to the respective engaging members 8 and
8 and 19 facing each other, and align them as shown by symbol C. Then, as shown in FIG. 4 above, the left and right speaker boxes 3, 4 are engaged with each other, with the engaging protrusions 10, 20 of the left and right speaker boxes 3, 4 being fitted between the engaging protrusions, respectively. The protrusions 11 and 21 are combined with each other,
interconnected.

As shown in FIG. 7, the convex portions 30 of the electronic device 5 are fitted into the concave portions 29 of the left and right speaker boxes 3, 4, and the slide plate 34 protruding from the center of the lower surface of the electronic device 5 is inserted into the concave portions 29 of the left and right speaker boxes 3, 4. As shown in Figure 12, connect the left and right speaker boxes 3 and 4 with engaging fittings 1.
The electronic device 5 is inserted into the insertion holes 13 and 23 of the speakers 4 and 24 and positioned in the respective guide holes, and the electronic device 5 is stacked on the left and right speaker boxes 3 and 4.

Thereafter, when the knob 40 of the slide plate 34 is pushed in, the engagement pieces 37 of the slide plate 34 engage the engagement fittings 14 and 2 of the left and right speaker boxes 3 and 4, respectively.
4, the opposing upper ends of the left and right speaker boxes 3 and 4 are connected to the center of the lower surface of the electronic device 5.

After that, the hook member 4 of the lever 45 of the latch fitting 26 is
4 into the hooking groove 53 of the latching fitting 43 of the electronic device 5 and tilting the lever 45, the combined left and right speaker boxes 3 and 4 are integrally connected to the electronic device 5, as shown in FIG. Portable audio equipment like this is assembled.

In the radio-cassette player of the present invention configured as described above, the left and right speaker boxes 3 and 4 can be operated horizontally in the vertical direction and in the front-rear direction by engagement of two types of engaging members protruding from the connecting side surfaces 7 and 17. The movement of the left and right speaker boxes 3 and 4 is restricted and the left and right speaker boxes 3 and 4 are fixedly connected by sliding the engaging piece 37 of the slide plate 34 protruding from the center of the bottom surface of the electronic device 5. Engagement metal fitting 14,
24, and furthermore, the outer surfaces of the left and right speaker boxes 3, 4 are connected to the electronic device 5 and the clamp mechanism 41.
are combined at

As a result, when the radio cassette player of the present invention is carried by the handle 6 attached to the electronic device 5, the connection between the left and right speaker boxes 3, 4 and the electronic device 5 is disconnected, and the left and right speaker boxes 3, 4 are disconnected. No more falling or rattling.

Furthermore, the radio cassette recorder of the present invention has mounting holes 47 in the left and right speaker boxes 3 and 4, and these mounting holes 47 are closed by closing plates 48,
Since the left and right speaker boxes 3, 4 are closed with the metal fittings 55 and the metal fittings 26 of the clamp mechanism 41 are attached to the closing plates 48, 55, even if the left and right speaker boxes 3, 4 are made of materials that do not have sufficient mechanical strength or are thin in thickness, the metal fittings 45 and the metal fittings 56 can be firmly attached and the airtightness of the left and right speaker boxes 3, 4 can be ensured.

In addition, when using the radio cassette player of this invention,
By reversing the assembly order, the left and right speaker boxes 3, 4 and the electronic device 5 can be separated, and the left and right speaker boxes 3, 4 can be arbitrarily arranged. When the left and right speaker boxes 3, 4 are used vertically, the engaging protrusions 10, 20 and the engaging convex pieces 11, 2 protruding from the side surfaces 7, 17 are used.
1 can function as legs.

In the above-described embodiment of the present invention, guide holes 27 are provided side by side at the upper ends of the left and right speaker boxes 3, 4 where they face each other, and engagement fittings 14, 24 are provided as engagement means to cover the front portions of the respective guide holes. , an engaging piece 37 serving as an engaging means is projected into the guide hole 27 from the center of the lower part of the electronic device 5, and the engaging piece 37 is slid from the outside to the front inside the guide hole to engage the electronic device 5. The piece 37 and the engagement fittings 14 and 24 were engaged.

However, in the present invention, it is also possible to install the engaging fittings 14, 24 so as to cover the rear part of the guide hole 27. In this case, the slide plate 34 can be attached to the engaging fitting 14 with the engaging piece 37 facing backward. , 24 through the insertion holes 13, 24, and slide the engagement fittings 14, 24 backward in the guide holes.
It becomes possible to engage with the

Furthermore, the present invention is not limited to the example in which the electronic device 5 is coupled to the left and right speaker boxes 3 and 4 as described above, but also to the structure in which the left and right speaker boxes 3 and 4 are stacked and coupled to the electronic device 5. is also possible.

[Effects of the Invention] As explained above, the portable audio equipment of the present invention is provided with an engaging means in the center of the electronic device so as to be slidable in the front and back direction, and a guide means and this engaging means are provided at the edges of the left and right speaker boxes. An engaging means is provided that spans the guiding means, and when the electronic device and the left and right speaker boxes are combined, the engaging means of the electronic device is positioned on the guiding means, and this engaging means is slid to engage the left and right speaker boxes. Since the electronic device 5 and the left and right speaker boxes are connected by engaging with the connecting means, the abutting portions of the left and right speaker boxes are firmly connected to the electronic device, and will not fall or rattle.

Furthermore, since the electronic device and the speaker box can be easily connected and separated by sliding the engaging means from the outside, the connecting operation becomes easy.
Separation is also easy.

[Brief explanation of drawings]

Figure 1 is a front view of a portable audio device.
2 and 3 are perspective views showing the left and right speaker boxes of the portable audio equipment of the present invention, FIG. 4 is a diagram showing how the left and right speaker boxes of FIGS. 2 and 3 are connected, and FIG. 6 is an exploded perspective view showing an embodiment of the engaging means of the speaker box of the present invention, and FIG. 6 is an exploded perspective view showing an embodiment of the engaging means of the electronic device constituting the portable audio equipment of the present invention. , FIG. 7 is a perspective view illustrating the connection between the left and right speaker boxes shown in FIGS. 5 and 6 and an electronic device, and FIGS. 8 and 9 are perspective views showing the clamping mechanism of the portable audio equipment of the present invention. FIG. 10 is a sectional view of the speaker box shown in FIG. 3, and FIGS. 11 and 12 are diagrams illustrating the assembly sequence of the portable audio device of the present invention. 1, 2... Speaker, 3, 4... Left and right speaker boxes, 5... Electronic device, 14, 24, 3
4, 37...Engagement means, 27...Guide hole, 41...
...Clamp mechanism.

Claims (1)

[Scope of utility model registration request] In a portable audio device in which left and right speaker boxes and an electronic device for driving the speakers in the left and right speaker boxes are integrally combined in a portable manner, the electronic device is slidable back and forth in the center of the electronic device. An engaging means is provided, a guiding means and an engaging means spanning the guiding means are provided at the edges of the left and right speaker boxes, and the electronic device is engaged in a state where the electronic device and the left and right speaker boxes are combined. The electronic device and the left and right speaker boxes are coupled by locating the means on the guide means of the speaker box and sliding the engaging means of the electronic device to engage with the engaging means of the left and right speaker boxes. Portable audio equipment characterized by: