JPS5848855Y2 - Car speaker box - Google Patents

Description

[Detailed description of the invention] This invention relates to an in-vehicle speaker box, and in particular, the front panel can be attached to and detached from the box with one touch.
Moreover, by using a fixing metal fitting having a convex head that fixes a baffle plate on the front surface of the box, an in-vehicle speaker box that can be manufactured at a low cost is provided.

A conventional front panel mounting structure for a vehicle-mounted speaker box is a removable structure in which the front panel is fixed to the speaker box using screws.

However, with this configuration, each time you attach or detach the front panel from the speaker box, you have to tighten a large number of screws.
This was very inconvenient as the front panel had to be removed and removed, requiring time and effort.

In addition, in general, in car speaker boxes, looseness tends to occur between the box and the front panel due to vibrations such as when the car is running, so adhesive or resin molding is used to prevent
There are many non-removable products in which the front panel and box are integrated, and there has been a strong demand for a low-cost vehicle speaker box that has excellent mechanical strength and is easy to install and remove.

The present invention is in response to the above-mentioned conventional demands, and has excellent mechanical strength and is easy to attach and detach by cleverly utilizing a fixing metal fitting with a convex head that fixes the baffle plate on the front of the box. The present invention provides an in-vehicle speaker box that can be manufactured with one touch and at a low cost.

Hereinafter, an embodiment will be explained with reference to the drawings.

In Figures 1, 2 and 3, 1 is a box;
2 is a baffle board, 3 is a speaker, 4 is a front panel, 5 is a net frame of the front panel 4, 5a is a window provided in the center of the net frame 5, 5b is a groove provided in the front of the net frame,
6 is a wire mesh fixed to the net frame 5, 6a is a peripheral edge of the wire mesh 6 bent at right angles, 7 is a fitting recess provided on the speaker side of the net frame 5, and 8 is a metal hexagon socket head bolt It is.

To explain the structure, a baffle plate 2 is fixed to the front opening of the box 1 by a plurality of hexagon socket head bolts 8, and the heads of the hexagon socket head bolts 8 protrude from the baffle plate 2 to the front. .

Further, the speaker 3 is housed inside the box 1 while being fixed to the inner surface of the baffle plate 2.

On the other hand, the front panel 4 is made up of a net frame 5 and a wire mesh 6, and the net frame 5 has a large window 5a in the center, and a plurality of hexagon socket head bolts 8 and A plurality of fitting recesses 7 are provided at corresponding positions.

This fitting recess 7 is a part that fits with the head of the hexagon socket head bolt 8 when the front panel 4 is attached to the box 1, and it fits with the head of the hexagon socket head bolt 8 with appropriate strength. It has a matching concave shape.

Further, a groove 5b is provided on the front surface of the net frame 5, and a perpendicularly bent peripheral edge 6a of the wire mesh 6 is fitted into the groove 5b, thereby fixing the wire mesh 6 to the net frame 5.

Note that the fitting recess 7 has an outer circumferential protrusion 7a that protrudes from the surroundings as shown in FIG.
It is composed of a recess 7b provided in the center of the outer circumferential protrusion 7a, and a notch 7C is provided in the outer circumferential protrusion 7a.

By providing the notch 7C in the outer peripheral protrusion 7a in this way, when the head of the hexagon socket head bolt 8 is fitted into the recess 7b,
The outer circumferential protrusion 7a can be bent in the outward direction (in the direction of arrows A and B) as shown in FIG. .

Furthermore, if a stopper dowel 7d is provided on the bottom surface of the recess 7b as shown in FIG. It can be prevented.

FIG. 5 shows another embodiment of the present invention, in which a cutout 1a is provided at the outer edge of the front surface of the speaker box 1, and a cutout 1a is provided at the outer edge of the back surface of the net frame 5 corresponding to the cutout 1a. , a peripheral protrusion 5C that fits into this notch 1a is provided.

The front panel 4 is attached to the speaker box 1 configured in this way.
If the front panel 4 is fixed, it will not easily come off due to the vertical force applied to the front panel 4, and will be extremely stable against vertical vibrations of the automobile.

Further, although the fitting force in the horizontal direction is relatively strong in the embodiment shown in FIG. As a result, the fitting force becomes even stronger, and it becomes extremely stable against inertial forces when starting or suddenly stopping the vehicle.

Next, considering the case where the front panel 4 is attached to the box 1 based on the car speaker box of this embodiment shown in FIG. size), roughly align the fitting recess 7 and the hexagon socket head bolt 8, and then push the front panel 4 horizontally toward the box 1.
Since the peripheral protrusion 5C of the front panel 4 is guided to the notch 1a of the box 1, the front panel 4 can easily fit into the recess 7b of the fitting recess 7.
The head of the hexagon socket head bolt 8 is pushed into the front panel 4.
installation is complete.

Further, when removing the front panel 4, the net frame 5 can be easily removed by simply holding the net frame 5 with one hand and pulling it against the fitting force between the fitting recess 7 and the hexagon socket head bolt 8.

In addition, in the above two embodiments, the protruding head of the hexagon socket head bolt that fixes the baffle plate to the box was used, but other types of bolts may be used, or bolts with large heads may be used. Screws may also be used.

The key is to use a fixing fitting for fixing the baffle plate to the box, and any fixing fitting that can form a convex portion that fits into a fitting recess provided on the back surface of the front panel may be used.

As explained above, the in-vehicle speaker box according to the present invention uses fixing hardware such as bolts to attach the baffle plate to the front of the box, so there is no need to provide a particularly complicated front panel mounting device. The component price is low and the mechanical strength is high.

Furthermore, the front panel can be attached and detached with one touch, which is of great practical value.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an in-vehicle speaker box according to an embodiment of the present invention, Fig. 2 is a perspective view of the in-vehicle speaker box before the front panel is attached, Fig. 3 is a rear view of the front panel, and Fig. 4 a, l) are a plan view and a cross-sectional view of a main part of the front panel, and FIG. 5 is a cross-sectional view of a vehicle-mounted speaker box according to another embodiment of the present invention. 1...Box, 1a...Notch, 2
...Baffle plate, 4...Front panel,
5C...Peripheral protrusion, 7...Fitting recess, 7a...Outer protrusion, 7b...Recess, 7C...Notch Part 8: Rotating fitting (hexagon socket head bolt) with a convex head.

Claims (3)

[Scope of utility model registration request] (1) A baffle plate is fixed to the front of the box using a plurality of fixing metal fittings with convex heads, and a baffle plate that fits with the convex heads of the fixing metal fittings is attached to the back of the front panel that protects the front of the box. An in-vehicle speaker box characterized by having a plurality of fitting recesses forming a shape. (2) Utility model registration claim 1, characterized in that the fitting recess is composed of a recess and an outer peripheral protrusion provided around the recess, and a notch is provided in the outer peripheral protrusion. car speaker box. (3) A claim for utility model registration characterized in that a notch is provided on the periphery of the front surface of the box, and a periphery protrusion that fits into the notch is provided on the periphery of the front panel corresponding to the notch. An in-vehicle speaker box according to item 1 or 2 of the scope.