JP2000277936A - Cover for electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-cost cover for an electronic device for which calking is not required and whose assembly is easy. SOLUTION: Ear-like parts 9a are provided on a wall 9. A convex part 9b is provided on one of a pair of sidewalls 6 and 7, and concave parts 6b and 7b are provided on the other sidewall. The concave and convex parts are engaged in each other, while the pair of ear-like parts 9a are overlaid on the outside of the pair of sidewalls 6 and 7 for coupling the wall 9 and the sidewalls 6 and 7. Since a cover for an electronic device is formed in this way, conventional calking is no longer necessary, and a low-cost cover for an electric device with satisfactory assembly can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cover suitable for use in electronic equipment such as a television tuner.

[0002]

2. Description of the Related Art Conventionally, electronic equipment such as a TV tuner generally has a circuit board formed of a printed circuit board mounted on a housing, and this circuit board is projected from a side wall of the housing in order to reduce the size of the electronic equipment. The protruding circuit board is covered with a cover so as to be electrically shielded.

As shown in FIGS. 9 and 10, a cover of such a conventional electronic device is formed by punching and bending a single metal plate. That is, as shown in FIG. 9, the cover 21 has a box shape, a wall 22 forming a bottom, a pair of side walls 23 and 24 bent from the wall 22 and formed to face each other, A rear wall 25 is formed so as to be bent from the rear portion of the pair 22 and closes the rear portions of the pair of side walls 23 and 24, and is formed so as to be bent from the rear wall 25 and close the upper portions of the pair of side walls 23 and 24. And a wall 26.

[0004] The box-shaped cover 21 has an opening 27 formed in the front part and a pair of side walls 23, 24.
Has legs 23a, 24a extending forward and protrusions 23b, 24b extending from side edges, and an upper wall 26.
Has a notch 26a provided at a position opposed to the protrusions 23b, 24b. The protrusions 23b, 24b are fitted into the notch 26a, and the tips of the protrusions 23b, 24b are caulked. And a pair of side walls 23 and 24 and an upper wall 2
6 are combined.

The cover 21 has a configuration in which the legs 23a and 24a are attached to the housing in a state where the portion of the circuit board projecting from the housing is housed in the cover 21, and the cover 21 is connected to the housing. It has become.

The cover 21 is manufactured by punching a single metal plate into a shape as shown in FIG. 10 and then bending it at a position indicated by a dotted line 27 to form a box. Then, the protrusion 23 fitted into the notch 26a
When the b and 24 are caulked, the cover 21 is completed.

[0007]

The conventional cover of an electronic device has a problem that the work is troublesome because the pair of side walls 23 and 24 and the wall 26 are joined by caulking. In addition, in order to fit the notch 26a and the protrusions 23b and 24b, in FIG.
24 is disengaged from the wall 26, and the side walls 23, 24 and the wall 26
There is a problem that they are separated.

[0008]

Means for Solving the Problems As a first means for solving the above-mentioned problems, a box-shaped cover made of a single metal plate is provided. The covers are bent in a U-shape and face each other. A pair of side walls, a wall portion disposed between the pair of side walls, and an ear portion formed by bending both side edges of the wall portion toward the side wall, and the ear portion and the pair of side walls. A projection provided on one of the side walls and a depression provided on the other, and the concave and convex portions are fitted to each other in a state where the pair of ears are overlapped on the outside of the pair of side walls. The configuration was combined. Also, as a second solution,
A hole is provided in the vicinity of both side edges of the wall, and a pair of side walls is provided with a protruding piece facing the hole and extending in a surface direction from the side edge, and inserting the protruding piece into the hole. And locked. As a third solution, the hole is provided near the bent portion of the ear portion, and the projecting piece is inserted into the hole.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment of a cover of an electronic apparatus according to the present invention.
FIG. 1 is a plan view showing a state in which a cover is attached to an electronic device according to a first embodiment of an electronic device of the present invention. FIG. FIG. 3 is a side view showing a state in which the cover is attached to the electronic device according to the first embodiment of the electronic device of the present invention. FIG. 3 is a perspective view of the cover according to the first embodiment of the cover of the electronic device of the present invention.
FIG. 5 is an enlarged sectional view of a main part of the cover according to the first embodiment of the cover of the electronic device of the present invention, and FIG. 5 is a developed view of the cover according to the first embodiment of the cover of the electronic device of the present invention.

Next, the cover of the electronic device of the present invention is shown in FIGS.
Referring to FIG. 5, the electronic device 1 such as a television tuner has a circuit board 3 formed of a printed board mounted on a housing 2. The circuit board 3 is mounted on the housing 2 to reduce the size of the electronic device 1. And a projecting portion 3a protruding from a side wall of the housing 2, and the projecting portion 3a is covered with a cover 4 that is a component separate from the housing 2 so as to be electrically shielded.

As shown in FIGS. 3 to 5, such a cover 4 in the present invention is formed by punching and bending a single metal plate. 3 and 4
As shown in FIG. 1, the cover 4 has a box shape, a wall 5 forming a bottom, a pair of side walls 6 and 7 bent from the wall 5 and formed opposite to each other, and a rear portion of the wall 5. A rear wall 8 is formed so as to be closed to cover the rear portions of the pair of side walls 6 and 7, and a rear wall 8 is formed to be bent from the rear wall 8 and
And a wall portion 9 disposed between the pair of side walls 6 and 7 so as to cover an upper portion of the wall 7.

The box-shaped cover 4 has an opening 10 at the front, and a pair of side walls 6, 7 are provided near the legs 6a, 7a extending forward and near both side edges. The upper wall 9 has a pair of ears 9a bent from both side edges to the side walls 6, 7 side.
And a protrusion 9b provided at a position facing the recesses 6b, 7b in the ear 9a. Then, the wall portion 9 is disposed over the pair of side walls 6 and 7, and the pair of ear portions 9a are overlapped on the outside of the pair of side walls 6 and 7, so that the convex portion 9b is fitted into the concave portions 6b and 7b. And a pair of side walls 6 and 7 and an upper wall 9 are connected.
The concave portions 6b and 7b and the convex portion 9b may be provided opposite to each other.

The cover 4 has a protruding portion 3a protruding from the housing 2 housed in the cover 4.
In this configuration, the legs 6 a and 7 a are attached to the housing 2, and the cover 4 is coupled to the housing 2.

The production of such a cover 4 is shown in FIG.
Is punched out from a single metal plate, and then bent at the position shown by the dotted line 11 to form a box shape. Then, first, the ear portion 9a is positioned outside the pair of side walls 6 and 7, and the wall portion 9 is bent so as to close the space between the pair of side walls 6 and 7. Then, the protrusion 9 provided on the ear 9a
b fits into the recesses 6b and 7b, and the manufacture of the cover 4 is completed.

FIGS. 6 to 8 show a second embodiment of the cover 4 according to the present invention. In this embodiment, a pair of holes 9c are provided near the bent portion of the ear 9a, and a pair of side walls 6, 7
Is provided with a pair of protruding pieces 6c, 7c facing the hole 9c and extending in the surface direction from the side edges, and the protruding pieces 6c, 7c are connected to the holes 9c.
And locked. The other configuration is the same as that of the first embodiment, so that the same components are denoted by the same reference numerals and description thereof is omitted here. The hole 9c provided in the wall 9 may be provided in the vicinity of a side edge other than the ear 9a. In this case, the pair of projecting pieces 6c and 7c are provided in the vicinity of the side edge. Of course, it is formed so as to face 9c.

[0016]

According to the cover of the electronic device of the present invention, the projection 9b is provided on one of the ear 9a provided on the wall 9 and the pair of side walls 6, 7, and the recesses 6b, 7b are provided on the other. In a state where the pair of ears 9a are overlapped on the outside of the pair of side walls 6, 7, the concave and convex portions are fitted to each other, and the wall 9 and the side walls 6, 7 are joined together. An unnecessary, easy-to-assemble, and inexpensive electronic device cover can be provided. In addition, the pair of side walls 6 and 7 are prevented from moving in the direction of arrow A in FIG. 3 by the ears 9a, and do not come off the wall 9 to provide a cover of the electronic device with a reliable assembling property.

In the vicinity of both side edges of the wall 9, holes 9c are provided.
And a pair of side walls 6, 7 are provided with projections 6c, 7c facing the hole 9c and extending in the surface direction from side edges thereof, and the projections 6c, 7c are inserted into the hole 9c and locked. With this configuration, there is no movement of the side walls 6 and 7 in the directions of arrows A and B in FIG. Further, since the hole 9c is provided near the bent portion of the ear 9a and the protrusions 6c, 7c are inserted into the hole 9c, the protrusions 6c, 7c are simultaneously superimposed on the side walls 6, 7 of the ear 9a. The cover 7c can be fitted into the hole 9c to provide a cover of an electronic device with good assemblability.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which a cover is attached to an electronic device according to a first embodiment of a cover of the electronic device of the present invention.

FIG. 2 is a side view showing a state in which the cover is attached to the electronic apparatus according to the first embodiment of the cover of the electronic apparatus of the present invention.

FIG. 3 is a perspective view of a cover according to a first embodiment of the cover of the electronic apparatus of the present invention.

FIG. 4 is an enlarged sectional view of a main part of the cover according to the first embodiment of the cover of the electronic apparatus of the present invention.

FIG. 5 is an exploded view of the cover according to the first embodiment of the cover of the electronic apparatus of the present invention.

FIG. 6 is a perspective view of a cover according to a second embodiment of the cover of the electronic apparatus of the present invention.

FIG. 7 is an enlarged sectional view of a main part of a cover according to a second embodiment of the cover of the electronic apparatus of the present invention.

FIG. 8 is an expanded view of a cover according to a second embodiment of the cover of the electronic apparatus of the present invention.

FIG. 9 is a perspective view of a cover relating to a cover of a conventional electronic device.

FIG. 10 is a development view of a cover relating to a cover of a conventional electronic device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 electronic device 2 housing 3 circuit board 3a projecting portion 4 cover 5 wall portion 6 side wall 6a leg portion 6b concave portion 6c projecting piece 7 side wall 7a leg portion 7b concave portion 7c projecting piece 8 rear wall 9 wall portion 9a ear 9b projecting portion 9c hole 10 opening 11 dotted line

Claims (3)

[Claims] A box-shaped cover made of a single metal plate is provided. The cover is bent in a U-shape, and is disposed so as to straddle a pair of side walls facing each other and between the pair of side walls. A wall portion, having an ear portion bent from both side edges of the wall portion to the side wall side, a projection provided on one of the ear portion and the pair of side walls, and provided on the other. A concave portion, and the concave and convex portions are fitted to each other in a state where the pair of ear portions are overlapped on the outside of the pair of side walls. 2. A hole is provided in the vicinity of both side edges of the wall, and a pair of side walls is provided with a protruding piece facing the hole and extending in a surface direction from the side edge. 2. The cover for an electronic device according to claim 1, wherein said cover is inserted into said hole and locked. 3. The electronic device cover according to claim 2, wherein the hole is provided near a bent portion of the ear, and the projection is inserted into the hole.