JPH0611196U - Chassis assembly structure - Google Patents

Abstract

(57) [Summary] [Structure] The chassis consists of a bottom wall 5 and a pair of left and right side walls 6.
1 made of extruded aluminum
And a front panel 2 attached to the front and rear end surfaces of the main body 1.
And a back panel. At both ends of the bottom wall 5,
A facing portion 7 that projects upward is formed, and a projecting portion 8 that projects inward is formed on both side wall portions 6. The upper and lower end portions of the panel 2 are brought into contact with both the projecting portions 8 of the main body 1 and the side wall portions 6
Upper correction portion 16 for correcting the inward fall of the floor and the bottom wall portion 5
A lower correction portion 17 fixed to the bottom wall portion 5 for correcting the downward curve of the bottom wall portion 5 is formed. Both end portions of the lower straightening portion 17 face both facing portions 7 of the main body 1 through a small gap, and the upper straightening portion 16
In cooperation with the above, the falling of both side wall portions 6 in the same direction with respect to the left-right direction is corrected. [Effect] The distortion of the main body 1 can be corrected, the distortion of the entire chassis can be prevented, and the deterioration of the sound quality and the appearance can be prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an assembly structure of a chassis used for an electric product such as an audio product.

[0002]

[Problems to be solved by conventional techniques and devices]

 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, an aluminum material has been used as the chassis. Aluminum material is preferable from the viewpoint of sound quality because it has low electric resistance and is non-magnetic, and aluminum material is preferable as a material for chassis where appearance is important because surface treatment is easy and beautiful. . By the way, when an aluminum material is used as the chassis, conventionally, for example, the chassis is manufactured by a die casting method, but this has a problem of cost increase.

Therefore, in order to solve the above problem, as shown in FIG. 7, a chassis has 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, It is conceivable that the main body 33 is composed of a front panel and a back panel attached to the front and rear surfaces. However, since the main body 33 is made of 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 31 is convex downward. It is easy to bend or the both side wall portions 32 tend to fall in the same direction in the left-right direction as shown in FIG. 9.

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, which causes deterioration of sound quality and appearance. How to solve the problem was a problem. An object of the present invention is to provide a chassis assembly structure that can solve the above problems.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, a feature of the present invention is to provide a main body made of an extruded material of aluminum having a horizontal wall portion and a pair of vertical wall portions vertically provided at both ends thereof. , A pair of panels that cover the horizontal openings between the vertical walls, respectively, and the vertical walls between the vertical walls are located at the end opposite to the horizontal wall side end in the vertical direction. And both ends contact the inner surfaces of both vertical wall parts to form a first straightening part that corrects the inward fall of both vertical wall parts. A second straightening portion is formed at the end portion, which is inserted between the vertical wall portions and fixed to the horizontal wall portion by a fixture to straighten the outward curve of the horizontal wall portion. 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]

[Action]

 If both vertical walls of the main body are inwardly collapsed, 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 vertical wall portions. While pushing outwards, correct the inward fall of both vertical walls. Also, when the horizontal wall is curved outward, when the second correction parts of both panels are fixed to the horizontal wall by the fixing tool, the horizontal wall is corrected so that it follows the second correction part. As a result, the outward curve of the horizontal wall is corrected. Furthermore, when both 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, The collapsing action of both end portions contacting the vertical wall portion and the end portion of the second correction portion contacting the end portion of the main body corrects the collapse of both vertical wall portions in the same direction with respect to the inward and outward directions. Be touched.

[0007]

【Example】

 Hereinafter, an embodiment of the present invention will be described 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 (not shown). And so on.

As shown in FIGS. 2 to 6, the main body 1 is made of a groove-shaped extruded material of aluminum, and is erected from a bottom wall portion 5 exemplified as a horizontal wall portion and both side end portions thereof. Further, it is composed of a pair of left and right side wall portions 6 exemplified as the vertical wall portion. 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 end portions thereof over the entire length in the front-back direction. In the portion of the inner side surfaces of both side wall portions 6 that extends over the entire length in the front-rear direction, the protruding portion 8 that protrudes inward, the upper mounting boss 9, the fins 10, 11, and 12 and the lower mounting boss 13 are arranged in the above order from the top to Are installed 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 aluminum extruded material, and 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 end portions are respectively attached to the upper and lower portions of the upper and lower portions by a pair of upper and lower screws 15 exemplified as a fixing tool to fix the annular portions 9A, 13A of the mounting bosses 9, 13 respectively. It is detachably fixed to the front end. Further, a pair of left and right upper correction parts 16 exemplified as a first correction part are formed in the left and right direction at the upper ends of both sides of the front surface of the front panel 2 excluding both end parts of the front panel. There is. Both outer end portions of the upper correction portion 16 are in contact with the front end portions of both projecting portions 8 of the main body 1 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-right direction on 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 side ends of the lower straightening 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 portions 16A and 17A that are obliquely cut off.

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 brought into contact with the rear end surface of the main body 1, and the upper and lower portions of both side end portions are respectively fixed to the pair of upper and lower screws 19 exemplified as a fixing tool by the annular portions 9A and 13A of the mounting bosses 9 and 13, respectively. It is detachably fixed to the rear end. A pair of upper and lower straightening portions 20 and 21 that are plate-like members projecting rearward and are exemplified as the first and second straightening portions are provided at the upper and lower end portions of the rear surface of the back panel 3 excluding both side end portions. It is 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 fixing tool, 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 through a small gap (for example, about 0.1 to 0.3 mm), and the rear portions of the both side wall portions 6 are provided. The tilt in the left-right direction in the same direction is corrected in cooperation with the upper correction unit 20. The front portions of both end portions of the upper and lower correction portions 20 and 21 are cut-off portions 20A and 21A that are cut off diagonally.

According to the embodiment configured as described above, when assembling the chassis, the front panel 2 and the back panel 3 can be attached to the main body 1 with the screws 15, 18, 19, 22 and both of the main body 1 can be assembled. A top plate (not shown) is attached to the projecting portion 8, the front panel 2 and the upper trimming portions 16 and 20 of 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. 9, or both side wall portions 5 tend to fall in the same direction in the left-right direction as shown in FIG.

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 aligned with the front and rear end portions of the both protruding portions 8 of the main body 1. As described above, when both side wall portions 6 fall inward as described above, in order to mount the front panel 2 and the back panel 3 on the main body 1, both panels 2, 3 is brought into contact with the front and rear end faces of the main body 1 and the upper straightening portions 16 and 20 are inserted between the both protruding portions 8 of the main body 1, both end portions of the upper straightening portions 16 and 20 have both side walls. While pushing the part 6 outward, the inward fall of both side wall parts 6 is corrected. Further, since the lower correction portions 17 and 21 of the front panel 2 and the back panel 3 are fixed to the front and rear ends of the bottom wall portion 5 of the main body 1 by the screws 18 and 22, the bottom wall portion 5 is lowered as described above. In the case where the bottom wall 5 is curved in a convex shape, the bottom wall 5 is straightened by the screws 18 and 22 along the lower straightening portions 17 and 21, and the bottom wall 5 is bent downward. Be corrected.

Furthermore, 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, both panels 2 and 3 are attached to 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 lower straightening portions 17 and 21 are brought into contact with each other and inserted between the both facing portions 7 of the main body 1, the end portions of the lower straightening portions 17 and 21 come into contact with the facing portion 7, and this contact is made. The contact and the abutment between the upper correction portions 16 and 20 and the both protrusions 8 correct the tilt of the side wall portions 6 in the same direction in the left-right direction.

It should be noted that 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 portions 16A and 17A that are cut off diagonally, and the back portions are also cut back. Since the front portions of the both side ends of the upper and lower correction portions 20 and 21 of the panel 3 are cut-off portions 20A and 21A which are cut off diagonally, the upper correction portions 16 and 20 are connected to both sides of the main body 1. It can be easily inserted when inserting between the protruding portions 8 and when inserting the lower correction portions 17 and 21 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 portion is formed on the inner surface of the sidewall. The correction 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. Further, 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, and the panels are the front panel and the back panel, but the horizontal wall portion of the main body is the top wall portion and the vertical wall portion is the vertical wall portion. The walls may be front and rear walls and the panels may be side panels.

[0016]

[Effect of device]

 As described above in detail, according to the present invention, it is possible to correct the inward tilt of both vertical walls and the outward curvature of the horizontal walls, and to suitably correct the distortion of the main body. Therefore, it is possible to prevent distortion of the entire chassis and prevent deterioration of sound quality and appearance. Further, according to the second aspect, it is possible to further correct the collapse of both the vertical wall portions in the same direction with respect to the inner and outer directions, and it is possible to more suitably correct the distortion of the main body.

[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 main body made of an extruded material of aluminum having a horizontal wall portion and a pair of vertical wall portions vertically provided at both ends thereof, 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 in 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 ends of the horizontal wall portion in the up-down direction are 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 with respect to the inward and outward directions 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 straightening portion. The chassis assembly structure according to claim 1, wherein the chassis assembly is opposed to each other through a small gap.