JPH0643917Y2 - Chassis assembly structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly structure of a chassis used for electric products such as audio products.

[0002]

2. Description of the Related Art For example, as a chassis of a CD player, an iron plate press-molded product or a resin molded product has been used in the past, but recently, as a chassis, an aluminum material has been used. Is used. The aluminum material is preferable from the viewpoint of sound quality because it has a low electric resistance and is a non-magnetic material, and the aluminum material is preferable as a material of the chassis where appearance is important because the surface treatment is easy and beautiful. By the way, when an aluminum material is used for the chassis, the chassis is conventionally manufactured by, for example, a die casting method, but this has a problem of cost increase.

Therefore, in order to solve the above problem, FIG.
As shown in FIG. 2, the chassis is composed of a main body 33 having a bottom wall portion 31 and a pair of left and right side wall portions 32 and made of an extruded material of aluminum, and a front panel and a back panel attached to the front and rear surfaces of the main body 33. It is possible to configure. However, since the main body 33 is made of an extruded material, some distortion is unavoidable. For example, as shown in FIG. 8, both side wall portions 32 fall inward and the bottom wall portion 3
1 is curved downwardly in a convex shape, or, as shown in FIG. 9, both side wall portions 32 tend to fall in the same direction with respect to the left-right direction.

When the chassis is assembled without correcting the above-mentioned distortion of the main body 33, there is a problem that the entire chassis is distorted, resulting in deterioration of sound quality and deterioration of appearance. The problem was how to solve it. An object of the present invention is to provide a chassis assembly structure that can solve the above problems.

[0005]

To achieve the above object, the present invention is characterized in that it has a horizontal wall portion and a pair of vertical wall portions vertically provided at both ends thereof. It has a main body made of extruded aluminum and a pair of panels that respectively cover the horizontal openings between the vertical wall portions, and both ends of the panels are opposite to the horizontal wall portion end portion in the vertical direction. In the part, a first straightening portion that is inserted between both vertical wall portions and has both ends contacting the inner surfaces of both vertical wall portions to correct the inward falling of both vertical wall portions is formed, and in both panels, A second straightening portion, which is inserted between both vertical wall portions and fixed to the horizontal wall portion by a fixture, is formed at the end portion of the horizontal wall portion with respect to the vertical direction to correct the outward bending of the horizontal wall portion. In point. In addition, in order to correct the tilt of both vertical walls in the same direction with respect to the inward and outward directions in cooperation with the first corrector, both ends of the second corrector are provided at both ends of the main body with a small gap in the inward and outward directions. It may also be opposed via.

[0006]

When both vertical walls of the main body are tilted inward, when the first straightening portions of both panels are inserted between both vertical wall portions of the main body, both ends of the first straightening portion are both While pushing the vertical walls outward, correct the inward fall of both vertical walls.
Further, when the horizontal wall portion is curved outward, when the second straightening portions of both panels are fixed to the horizontal wall portion by the fixture,
The horizontal wall portion is straightened along the second straightening portion, and the outward curve of the horizontal wall portion is straightened. Furthermore, when both the vertical walls are tilted in the same direction with respect to the inside and outside directions, when the first and second correction parts of both panels are inserted between the vertical walls of the main body, both ends of the first correction part are inserted. The collapsing action of the portion abutting the vertical wall portion and the end portion of the second correction portion abutting the end portion of the main body corrects the fall of both vertical wall portions in the same direction with respect to the inward and outward directions. It

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings of FIGS. 1 to 6. In FIG. 1, a chassis includes a main body 1, a front panel 2, a back panel 3 and a top plate (shown in the drawing). Omitted) etc.

As shown in FIGS. 2 to 6, the main body 1 is
It is made of aluminum-groove-shaped extruded material, and comprises a bottom wall portion 5 exemplified as a horizontal wall portion, and a pair of left and right side wall portions 6 erected from both end portions thereof and exemplified as vertical wall portions. On the upper surface, which is the inner surface of the bottom wall portion 5, a pair of left and right facing portions 7 projecting upward are formed at portions of both side end portions along the entire length in the front-rear direction. Inwardly projecting portions 8, upper mounting bosses 9, fins 10, 11, 12 and lower mounting bosses 13 are provided on the inner side surfaces of both side wall portions 6 over the entire length in the front-back direction from top to bottom in the above order. They are arranged side by side. The inner portions of the mounting bosses 9 and 13 are annular portions 9A and 13A that are slightly open inward.

The front panel 2 covers the front opening between the both side wall portions 6 of the main body 1, is made of an extruded material of aluminum, and the both side portions are higher than the central portion. The front panel 2 is in contact with the front end surface of the main body 1, and the upper and lower portions of both side end portions are respectively attached to the front and rear ends of the annular portions 9A and 13A of the mounting bosses 9 and 13 by the screws 15 addressed to a pair of upper and lower sides exemplified as a fixing tool. It is detachably fixed to the section. In addition, a pair of left and right upper correction portions 16 exemplified as a first correction portion are formed in the left-right direction at the upper ends of both sides of the rear surface of the front panel 2 excluding both end portions thereof so as to project rearward. There is. Both outer ends of the upper straightening portion 16 are formed by the main body 1
The front end portions of the both protruding portions 8 are brought into contact with each other in the left-right direction to correct the inward fall of the front portions of the both side wall portions 6. Further, a lower correction portion 17 having a plate shape protruding rearward and exemplified as a second correction portion is formed in the left and right direction at a portion of the lower end portion of the rear surface of the front panel 2 excluding both side end portions. The lower correction portion 17 is detachably fixed to the front end portion of the bottom wall portion 5 of the main body 1 by a suitable number of screws 18 exemplified as a fixing tool, and corrects the downward curve of the front portion of the bottom wall portion 5. To do. Further, both end portions of the lower correction portion 17 face the front end portions of both facing portions 7 of the main body 1 with a small gap (for example, about 0.1 to 0.3 mm) therebetween, and the front portions of the both side wall portions 6 are provided. Tilt in the same direction with respect to the left-right direction is corrected in cooperation with the upper correction unit 16. The rear portions of the outer end portions of both upper correction portions 16 and the rear portions of both end portions of both lower correction portions 17 are cut off obliquely.
6A and 17A.

The back panel 3 covers the rear side opening between the both side wall portions 6 of the main body 1 and is made of an extruded material of aluminum. The back panel 3 is in contact with the rear end surface of the main body 1, and the upper and lower portions of both side end portions are respectively attached to the mounting bosses 9 and 1 by screws 19 which are a pair of upper and lower ends exemplified as a fixing tool.
It is detachably fixed to the rear ends of the three annular portions 9A and 13A. The upper and lower end portions of the rear surface of the back panel 3 other than both side end portions are formed in a plate shape protruding rearward and
・ A pair of upper and lower straightening parts 2 exemplified as the second straightening part
0 and 21 are formed in the left-right direction. Both side ends of the upper correction portion 20 are brought into contact with the rear end portions of both projecting portions 8 of the main body 1 in the left-right direction to correct the inward fall of the rear portions of the both side wall portions 6. The lower correction portion 21 is detachably fixed to the rear end portion of the bottom wall portion 5 of the main body 1 by a suitable number of screws 22 exemplified as a fixture, and corrects the downward curve of the rear portion of the bottom wall portion 5. To do. Further, both end portions of the lower correction portion 21 face the rear end portions of both facing portions 7 of the main body 1 via a small gap (for example, about 0.1 to 0.3 mm), and the rear portions of both side wall portions 6 are provided. Tilt in the same direction with respect to the left-right direction is corrected in cooperation with the upper correction unit 20. The front portions of both upper and lower straightening portions 20 and 21 on both side ends are cut off diagonally 20A and 21A.
It is said that.

According to the embodiment configured as described above, when assembling the chassis, the front panel 2 and the back panel 3 are attached to the main body 1 with the screws 15, 18, 19, 22 and the both main bodies 1 are projected. A top plate (not shown) is attached to the upper correction parts 16 and 20 of the part 8, the front panel 2 and the back panel 3 with screws (not shown) to form a chassis. At this time, since the main body 1 is made of an extruded material, some distortion is unavoidable. For example, as shown in FIG. 8, each side wall portion 6 falls inward and the bottom wall portion 5 is convex downward. It is easy to bend or the both side wall portions 5 tend to fall in the same direction with respect to the left-right direction as shown in FIG. 9.

However, according to the present invention, both outer end portions of the upper straightening portion 16 of the front panel 2 and both side edges of the upper straightening portion 20 of the back panel 3 are left and right with the front and rear end portions of the both protruding portions 8 of the main body 1. Since it is made to abut on the direction,
As described above, when the both side wall portions 6 fall inward, both panels 2 and 3 are brought into contact with the front and rear end surfaces of the main body 1 in order to mount the front panel 2 and the back panel 3 on the main body 1. When the upper straightening portions 16 and 20 are inserted between the both protruding portions 8 of the main body 1, both side ends of the upper straightening portions 16 and 20 push the both side wall portions 6 outwardly and Correct the inward fall of the part 6. Further, the lower correction portions 17 and 21 of the front panel 2 and the back panel 3 are the bottom wall portion 5 of the main body 1.
Since it is fixed to the front and rear ends of the bottom wall portion by screws 18, 22, as described above, when the bottom wall portion 5 is curved in a downward convex shape, the bottom wall portion is screwed by the screws 18, 22. 5 is straightened along the lower straightening portions 17 and 21, and the downward bending of the bottom wall portion 5 is straightened.

Further, since both side ends of the lower correction portions 17 and 21 of the front panel 2 and the back panel 3 face the front and rear ends of both facing portions 7 of the main body 1 with a small gap in the left-right direction, As described above, when both side wall portions 6 are tilted in the same direction with respect to the left-right direction, the front panel 2 and the back panel 3 are attached to the main body 1 so that both panels 2, 3
Abutting the front and rear end surfaces of the main body 1,
When 7 and 21 are inserted between both facing parts 7 of the main body 1, the ends of the lower correction parts 17 and 21 come into contact with the facing part 7, and this contact and the above-mentioned upper correction parts 16 and 20. And both protrusions 8
By collaborating with the contact with, the tilting of both side wall portions 6 in the same direction with respect to the left-right direction is corrected.

The rear portions of the outer end portions of both upper correction portions 16 of the front panel 2 and the rear portions of both end portions of the lower correction portion 17 are cut off obliquely.
Also, the upper and lower straightening parts 20, 21 of the back panel 3
Since the front portions of the both side end portions are cut-off portions 20A and 21A which are cut off diagonally, the upper correction portions 16 and 2 are formed.
It can be easily inserted when 0 is inserted between both protruding portions 8 of the main body 1 and when the lower straightening portions 17 and 21 are inserted between both facing portions 7 of the main body 1. As described above, the distortion of the main body 1 can be preferably corrected, so that the entire chassis is not distorted, and the sound quality and the appearance are not deteriorated.

In the embodiment, the protrusion is formed on the inner surface of the side wall, and the upper correction portion is brought into contact with the protrusion. However, without forming the protrusion, the upper correction is made on the inner surface of the side wall. The straightening part may be directly brought into contact. Further, in the embodiment, the facing portion is formed on the upper surface of the bottom wall portion and the lower straightening portion is made to face the facing portion. However, the facing portion is not formed and the lower straightening portion is formed on the inner surface of the side wall portion. May be opposed to each other. Furthermore, in the embodiment, the horizontal wall portion of the main body is the bottom wall portion, the vertical wall portion is the side wall portion,
Although the panels are the front panel and the back panel, the horizontal wall portion of the main body may be the top wall portion, the vertical wall portion may be the front and rear wall portions, and the panel may be the side panel.

[0016]

As described above in detail, according to the present invention,
In addition to being able to correct the inward fall of both vertical walls, it is also possible to correct the outward curvature of the horizontal walls, and it is possible to properly correct the distortion of the main body, thus preventing the distortion of the entire chassis and improving the sound quality. It is possible to prevent deterioration and deterioration of appearance. Further, according to the second aspect, tilting of both vertical wall portions in the same direction with respect to the inner and outer directions can be corrected, and distortion of the main body can be corrected more suitably.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along the line BB of FIG.

4 is a cross-sectional view taken along the line CC of FIG.

5 is a view on arrow D of FIG. 4. FIG.

6 is a cross-sectional view taken along the line EE of FIG.

FIG. 7 is a perspective view showing a comparative example.

FIG. 8 is a side view showing a comparative example.

FIG. 9 is a side view showing a comparative example.

[Explanation of symbols]

1 ... Main body, 2 ... Front panel, 3 ... Back panel, 5
... bottom wall (horizontal wall), 6 ... side wall (vertical wall), 7 ...
Opposing part, 8 ... Projection part, 16, 20 ... Upper correction part (first correction part), 17, 21 ... Lower correction part (second correction part), 15, 1
8, 19, 22 ... Screws (fixtures).

Claims (2)

[Scope of utility model registration request] 1. A body having a horizontal wall portion and a pair of vertical wall portions vertically provided at both ends thereof and made of an extruded material of aluminum, and a horizontal opening between the vertical wall portions. It has a pair of panels to cover, and in both panels,
Inserted between both vertical wall parts at the end opposite to the horizontal wall part end with respect to the vertical direction, and both ends contact the inner surfaces of both vertical wall parts to prevent the vertical wall parts from falling inward. The first straightening portion for straightening is formed, and in both panels, the end portion on the side of the horizontal wall portion in the vertical direction is inserted between the vertical wall portions and fixed to the horizontal wall portion by a fixing tool to the outside of the horizontal wall portion. A chassis assembly structure characterized in that a second straightening portion is formed to straighten the bending of the chassis. 2. Both ends of the second straightening portion are fixed to both ends of the main body in the inward and outward directions in order to correct the tilting of both vertical walls in the same direction with respect to the inward and outward directions in cooperation with the first straightening portion. The chassis assembly structure according to claim 1, wherein the chassis assembly is opposed to each other through a small gap.