JPS6320148Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to various electronic equipment housings in which lead wires (electrical wires) are arranged, and is particularly applicable to audio equipment housings such as small portable speaker devices. It is suitable.

1 and 2 show a conventional portable small speaker device, in which a speaker box 1 is shown.
usually includes a front section 3 to which a speaker 2 is attached;
It is composed of a main body 9 consisting of a rear plate 4, a pair of side plates 5 and 6, a top plate 7, and a bottom plate 8. When assembling this type of speaker device, the front section 3 and the main body 9 are separated from each other as shown in Fig. 1, and the speaker 2 is fixed to the back side of the front section 3 with screws. I am trying to wire speaker 2. Therefore, during wiring, for example, it is necessary to draw the plug lead wire (electric wire) 10 sufficiently into the speaker 2 side through the lead wire drawing hole 11 of the main body 9. For this reason, when the front section 3 is attached to the main body 9 to form the speaker box 1, the lead wire 10 drawn in will inevitably become loose inside the speaker box 1. If the speaker device is driven in this state, the loose lead wire 10 will cause the speaker 2 to vibrate, causing damage to the speaker box 1, the speaker 2, and the printed circuit board (not shown) disposed inside the speaker box 1. When this occurs, there is a high possibility that a so-called "rattling" phenomenon may occur, causing abnormal noises or causing component parts such as electrical circuit parts to fall off. In particular, if the lead wire 10 hits the paper cone of the speaker 2, there is an inconvenience that noise that is very difficult to hear is generated.

Conventionally, when the assembly of the speaker box 1 is completed, the lead wire 10 is pulled out of the speaker box 1 through the hole 11 to eliminate the slack in the lead wire 10 inside the speaker box 1, and then, for example, the speaker box 1 is assembled. By tightening and fixing the holding member 14 to the lead wire locking member 13 provided on the rear plate 4 with screws 15, the lead wire 10 is locked between them.

However, in such a conventional speaker device, the lead wire 1 in the speaker box 1
In order to eliminate the slack of the engagement portion 13 and the pressing member 1
4 and screws 15 are required,
The number of parts is increased, and the operation of fastening the lead wire 10 as described above is troublesome. As a result, the manufacturing cost of the speaker device is high.

The present invention was devised in view of the above-mentioned actual situation, and is an electronic device casing that does not require the provision of special members and can eliminate slack in lead wires within the casing with extremely simple work. It is an attempt to provide the body.

Embodiments of the present invention will be described below with reference to FIGS. 3 to 9. In addition, in FIGS. 3 to 9,
Components common to those in FIGS. 1 and 2 are given the same reference numerals, and their explanations will be omitted.

First, FIGS. 3 to 7 show a first embodiment in which the present invention is applied to a small portable speaker device.

As shown in FIG. 3, the main body 9 made of synthetic resin has a lead wire storage part 17 integrally formed at a corner formed by the rear plate 4 and the bottom plate 8. As shown in FIG. In this storage portion 17, a U-shaped cross-section portion 18 is provided on the inner surface side of the plate portion 17a which is flat on the bottom plate 8.
This U-shaped section 18 and a portion 17b of the plate portion 17a constitute a cylindrical lead wire lead-in portion 20. A portion 17b of the plate portion 17a has a third
As shown in the drawings and FIG. 6, a slit 21 is formed extending along the longitudinal direction of the lead wire lead-in portion 20. As shown in FIG.

Further, as shown in FIG. 3, the lead wire storage section 17
A plate member 25, which is a synthetic resin molded body and includes a lid body 22 and a presser plate 23, is attached to the. The lid body 22 and the presser plate 23 are integrally connected to each other via a hinge portion 24 made of a thin wall, and the protrusion 26 provided on the presser plate 23 is connected to the fitted portion 27 of the lead wire storage portion 17. It is fixed in the fitted state. The lid body 22 is centered around the hinge portion 24 as indicated by the arrow A in FIG.
It is rotatable in the direction A', and by rotating the lid 22 in the direction of arrow A, the engaging portion 28 of the lid 22 is opened.
By engaging with the engaged portion 29 of the main body 9, the lead wire storage portion 17 is closed.

Further, a lead wire 10 for supplying a signal from the main body of the audio equipment to the speaker 2 is made of a covered electric wire, and one end portion of this lead wire 10 is connected to the speaker 2. This lead wire 10 is connected to the lead wire storage section 1.
A plug 32 is attached to the other end of the lead wire 10. In this embodiment, by attaching the plate-like member 25 to the lead wire storage portion 17 as described above, the lead wire 10 can be attached to the protrusion 33 provided in the notch 31 as shown in FIG. and the holding plate 23 of the plate-like member 25.

Next, the procedure for assembling the speaker device constructed as described above will be described. First, the speaker 2 is fixed to the back side of the front part 3 while the front part 3 and the main body 9 constituting the speaker box 1 are separated from each other as shown in FIG. After that, lead wire 10
into the main body 9 through the notch 31 for the length required for wiring work, and
The plate-like member 25 is attached to. As a result, the lead wire 10 is locked by the protrusion 33 of the notch 31 and the press plate 23 of the plate member 25. Next, one end of the lead wire 10 is connected to a terminal of the speaker 2. Then, when attaching the front part 3 to the main body 9, the lead wire 10 drawn into the main body 9
A part of the wire is pinched with fingers and bent into a U-shape as shown in FIG. 3, and this bent portion 10a is inserted into one end of the lead wire insertion portion 20 as shown in FIG.
As a result, the elastic restoring force of the bent portion 10a of the lead wire 10 causes the bent portion 10a to be temporarily fixed while being inserted into one end of the lead wire lead-in portion 20. Next, under such conditions, the front part 3 is attached so as to cover the opening of the main body 9, and the bosses 3 provided on each of the front parts 3 are attached.
By screwing screws into 4 and 35, these are integrally connected to form the speaker box 1.

After assembling the speaker device in this way,
With the lid body 22 in an open state, as shown in FIG. and pull it along the slit 21 in the direction of arrow B. Along with this, a part of the lead wire 10 is drawn into the lead wire lead-in part 10, so that the slack of the lead wire 10 in the speaker box 1 can be absorbed and loosened, as shown in FIG. It can be left in a state without.

Note that after the lead wire 10 is drawn into the lead wire drawing section 20, even if vibration occurs in the speaker box 1 and the lead wire 10 when the speaker device is driven, the lead wire 10 will remain stable due to its moderate elastic restoring force. It is reliably stored and held without jumping out from the retracting portion 20.

According to the speaker device configured in this manner, although the speaker box 1 has a simple configuration in which the lead wire lead-in portion 20 and the slit 21 are provided, the lead wire 10
The slack of the lead wire 10 inside the speaker box 1 can be reliably eliminated by a simple operation of pulling the U-shaped bent portion 10a of the speaker box 1. As a result, when the speaker device is driven, the lead wire 10 may hit the cone paper of the speaker 2 or the speaker box 1 and cause abnormal noise, or the lead wire 10 may vibrate and hit the electrical circuit parts or other components. It is possible to prevent the possibility of these items falling off from their predetermined mounting locations. Moreover, there is no need to use special components like in the past.
Further, as described above, since the work of eliminating slack in the lead wire 10 is extremely simple, it is possible to reduce the manufacturing cost of the speaker device.

8 and 9 show a second embodiment of the present invention, and this embodiment is a portable device in which, for example, a radio receiver, a cassette tape recorder, etc. are incorporated in one cabinet 40. The present invention is applied to audio equipment for use. As shown in FIG. 8, the cabinet 40 consists of a box-shaped main body 41 and a box-shaped lid 42, and the bosses 43 and 44 provided on the inside of these are aligned with each other and screwed together. Cabinet 4
0, and a printed circuit board 46 on which various electric circuit components 45 are mounted is housed within the cabinet 40.

Further, a battery storage section 48 is provided on the bottom side of the main body 41, and a lead wire lead-in section 2 having the same configuration as the embodiment described above is provided on the inner surface side of this battery storage section 48.
0 and a pair of slits 21 are provided. In this embodiment, temporary fixing protrusions 49 and 50 are provided corresponding to one end of the slit 21, respectively.

When assembling such an audio device, the main body 41 and the lid 42 are separated from each other as shown in FIG. The connected terminals 51 and 52 are electrically connected to each other by lead wires 54 and 55. Thereafter, the printed circuit board 46 is screwed to the mounting portion 56 provided on the lid 42. When the lid body 42 is placed over the main body 41, the lead wires 54, 55 are connected to the temporary fixing protrusions 49, 5 of the main body 41, as shown by imaginary lines in FIG.
0 and the lead wire lead-in portion 20 for temporary fixation. Then, the main body 41 and the lid body 42 are assembled together to form the cabinet 4.
0, as shown in FIG. 9, an operating member 38 such as a screwdriver is inserted from the outside of the cabinet 40 through the slit 21, and the lead wires 54,
55 in the direction of arrow C, these lead wires 54 and 55 are connected to the lead wire drawing section 20.
each. As a result, the lead wires 54 and 55 are stored and held in the lead wire drawing section 20 as in the case of the previously described embodiments, so that the lead wires 54 and 55 in the cabinet 40 are 55 slack can be eliminated. Therefore, in this embodiment as well, the same effects as in the first embodiment described above can be achieved.

Although the present invention has been described above with reference to embodiments, the present invention is not limited to these embodiments, and various modifications and changes can be made based on the technical idea of the present invention.

As described above, the present invention provides a lead wire lead-in part inside the casing (for example, the speaker box 1 and the cabinet 40 shown in the embodiment), and forms a slit in the lead-in part, so that the lead wire can be connected from the outside of the casing through the slit. A part of the lead wire can be drawn into the lead-in portion by inserting an operating member (for example, a screwdriver) into the housing and pulling the lead wire arranged inside the casing. .Therefore, according to the electronic device casing of the present invention,
Although it has an extremely simple structure in which the lead wire lead-in portion and the slit are provided in relation to each other, the slack of the lead wire within the casing can be eliminated by drawing the lead wire into the lead wire lead-in portion. As a result, various damages occur due to loose lead wires, such as the lead wires becoming loose, or the lead wires swinging and hitting electrical circuit components, causing them to fall off the printed circuit board, etc. Financial damage can be prevented.

In addition, the electronic device casing according to the present invention does not require the use of independent separate members (lead wire locking members, lead wire holding members, screws, etc.) as in the past, so the number of parts and assembly man-hours can be reduced. It becomes possible to reduce the manufacturing cost of the device.

[Brief explanation of the drawing]

1 and 2 show a conventional speaker device, in which FIG. 1 is an exploded perspective view of the speaker device, and FIG. 2 is an enlarged perspective view of a lead wire extraction portion. 3 to 7 show the first embodiment of the present invention, in which FIG. 3 is an exploded perspective view of the speaker device, FIG. 4 is an enlarged perspective view of the lead wire storage section, and FIG. 5 is an enlarged sectional view taken along the - line in Fig. 3;
The figure is an enlarged plan view of the lead wire storage section when the lid is opened, etc., FIG. 7 is a plan view similar to FIG. 8 is an exploded perspective view of the audio equipment, and FIG. 9 is an enlarged plan view of the battery storage section when the lid is opened, showing a second embodiment of the present invention. In addition, in the symbols used in the drawings, 1...
... Speaker box, 10, 54, 55 ... Lead wire, 20 ... Lead wire lead-in portion, 21 ... Slit, 38 ... Operation member, 40 ... Cabinet, 49, 50 ... Temporary fixing projection.

Claims (1)

[Scope of utility model registration request] A lead wire lead-in part is provided inside the casing, and a slit is formed in the lead-in part, and an operating member is inserted from the outside of the casing through the slit to pull out the lead wire arranged inside the casing. An electronic device casing, characterized in that a part of the lead wire can be pulled into the lead-in portion by tensioning the lead wire.