JP2003069245A - Aligning structure for assembling housing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aligning structure for assembling a housing wherein any appearance quality is not damaged when a housing is so assembled as to combine its component having a decent surface with its other component, although the alignment of both its components with each other is performed accurately and easily. SOLUTION: With respect to the aligning structure for assembling housings, there is formed a recessed groove 22 as a first engaging portion in a first flange 14 of a decent surface A of a first housing 10, when a second housing 12 is aligned fixedly with the rear-surface side of the decent surface A of the first housing 10 which has the decent surface A in its partial portion. Also, there is formed a protruding portion 24 in a second flange 18 of the second housing 12. The protruding portion 24 serves as a second engaging portion and is so engaged with the first engaging portion 22 as to align the second housing 12 with the first housing 10. As a result, the recessed groove 22 and the protruding portion 24 are not exposed to the decent surface A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning structure for an assembled housing, and more particularly to positioning and fixing another housing with respect to a housing having a surface for which quality is required for reasons such as exposure on the surface. The present invention relates to improvement of the positioning structure.

[0002]

2. Description of the Related Art Conventionally, a chassis such as a chassis is constructed by combining a plurality of parts. The combination is such that the plane portion of the first component is laminated in parallel with the plane portion of the second component, or the plane portion of the first component is perpendicular to the plane portion of the second component. There are various combinations such as combinations, depending on the application.

For example, FIGS. 4 (a) and 4 (b) show an example of combination so that plane portions of each other are perpendicular to each other. In the case of FIG. 4A, the first housing 100 has a positioning hole 100a for positioning the second housing 102.
And an insertion hole 100b for inserting a screw 104 for fixing the second housing 102 to the first housing 100 is formed. On the other hand, the second housing 102 has the positioning hole 1
00a, a positioning pin 102a that can be inserted and a screw hole 102b into which the screw 104 is screwed are formed.

When assembling the first casing 100 and the second casing 102, first, the positioning pin 102a is inserted into the positioning hole 1.
Inserted into 00a, and in the state where the positioning of both is completed, the both are fixed by the screw 104.

FIG. 4B shows an example in which the positioning pin 102a is composed of a square pin 102c and is inserted into the square hole 100c. In this case as well, both can be fixed after the positioning work.

[0006]

As described above, when a plurality of components are combined to form a housing, a part of the housing often becomes the appearance surface A exposed on the surface of the device or the like. In such a case, the first housing 100 and the second housing 102
Positioning hole 100a and square hole 100c used for positioning with, and positioning pin 102a and square pin 102c that are inserted into and project from the hole
May impair the quality of the appearance surface A. A screw whose function is clear, such as the screw 104, is easily accepted as a design, but like a positioning pin or a positioning hole, its function is not clear in appearance, and it may cause unevenness on the appearance surface A. The thing is that it is hard to be accepted as a design and gives a feeling of strangeness.

Further, as shown in FIGS. 4 (a) and 4 (b),
When the folding portion 106 is formed in the first housing 100, when the positioning pin 102a is inserted into the positioning hole 100a, the insertion position is blocked by the folding portion 106 from the insertion side of the screw 104, that is, the operator side. It may happen. In this case, the positioning work depends on the sense of the fingertip and the like, and there is a problem that the work efficiency is extremely poor.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to accurately and easily perform the assembly of a casing by combining a component having a surface with another component. Another object of the present invention is to provide a positioning structure for an assembled housing that does not impair the quality of the appearance surface while performing the positioning.

[0009]

In order to achieve the above object, the present invention is directed to a first casing having a partly appearance surface,
A positioning structure for positioning a second housing connected to the back surface side of the appearance surface of the first housing, the first engagement portion being formed on a non-appearance surface of the first housing, A second engaging portion that engages with the first engaging portion and positions the second casing with respect to the first casing
An engaging part, and the first engaging part and the second engaging part are not exposed to the appearance surface.

Here, the appearance surface means a special surface which is required to have a predetermined quality because the surface is exposed on the surface of the device or the like. According to this configuration,
Since the first engaging portion and the second engaging portion are not exposed on the appearance surface,
It is possible to prevent the appearance quality of the assembled housing from being impaired.

In order to achieve the above-mentioned object, in the present invention according to the above-mentioned structure, the first casing has a folded-back portion that is folded back at a right angle to the rear surface side with respect to the appearance surface,
The first engaging portion is formed at an end portion of the folded portion.

According to this structure, the engaging positions of the first engaging portion and the second engaging portion can be easily visually recognized even when the folded portion is present, and the positioning work can be easily performed.

Further, in order to achieve the above object, the present invention is characterized in that, in the above-mentioned structure, the first engaging portion and the second engaging portion have an uneven shape which engages with each other.

According to this structure, the assembly housing can be reliably positioned by an easy structure.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention (hereinafter referred to as embodiments) will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view for explaining the positioning structure of the assembled casing of this embodiment. In the case of the present embodiment, when two housings, that is, the second housing 12 is connected to the rear surface side of the appearance surface A of the first housing 10, the two housings are positioned and fixed. The first housing 10 is, for example, a plate-shaped member made of metal, resin, or the like, and has a substantially U-shaped cross section including the first flange portion 14 formed by folding back both ends. And
The outside of the U-shaped cross section (the surface A on the side indicated by the arrow) is exposed on the surface when assembled in, for example, a device, and forms a presentation surface A that needs to maintain quality. Further, the appearance surface A is formed with insertion holes 10a (two in FIG. 1) through which the screws 16 for fixing the second housing 12 are inserted.

On the other hand, the second casing 12 is also a plate-like member made of metal, resin or the like, and has a substantially U-shaped cross section including the second flange portion 18 formed by folding back both ends. There is. Further, in the case of the second case 12, a fixing flange 20 for arranging a screw hole 12a for fixing the second case 12 is formed. Each flange of the first housing 10 is formed perpendicular to the appearance surface A, and the second housing 1
2 is also formed perpendicular to the body surface B.

A characteristic feature of this embodiment is that a plurality of housings,
For example, the second housing 12 is provided on the rear surface side of the appearance surface A of the first housing 10.
The engaging portion for performing positioning when connecting is formed at a position not exposed on the appearance surface A of the first housing 10, that is, a non-formation surface.

In FIG. 1, the non-formation surface of the first housing 10 is, for example, the first flange 14, and the end portion of the first flange 14 is positioned at the time of combination with the second housing 12. A concave groove 22 is formed as a first engaging portion. On the other hand, in the second casing 12, a convex portion 24 as a second engaging portion that can be engaged with the concave groove 22 is formed at the end of the second flange 18.

In the case of this embodiment, the first folded-back portion is used.
The first and second flanges 14 and 18 are respectively
Since the engaging portion is formed, the first housing 10 and the second housing 1
When combining 2 and 2, it is necessary that the fixing flange 20 of the second housing 12 enters inside the U-shaped cross section of the first housing 10, and the concave groove 22 and the convex portion 24 engage with each other. Therefore, in the present embodiment, the outer dimensions L1 of the first flanges 14 of the first casing 10 facing each other and the second casing 12 are arranged.
And the inner dimension L3 of the opposing first flange 14 of the first housing 10 is smaller than the outer dimension L4 of the fixed flange 20 of the second housing 12. It is formed to be slightly larger.
In addition, it is preferable that the dimensional difference between L3 and L4 is not larger than the thickness of the plate material forming the housing.

By forming the concave groove 22 and the convex portion 24 and setting the dimensions of the first and second casings 10 and 12 as described above, the first casing 10 and the second casing 12 are positioned. It can be easily performed, and when the combination of the concave groove 22 and the convex portion 24 is completed, the insertion hole 10a and the screw hole 12
The alignment with a is completed, and the first housing 10 and the second
The work of fixing the housing 12 can be performed. Further, as is clear from FIG. 1, the positions of the concave groove 22 and the convex portion 24 are the same as those of the screw 1
Since it is possible to always check from the standing position of the worker who performs the screwing work of No. 6, it can be performed reliably and easily by visual inspection without depending on the combination of the concave groove 22 and the convex portion 24.

2 (a) to 2 (d) are plan views showing the states of the first casing 10 and the second casing 12 after the positioning and fixing are seen from the respective directions. FIG. 2A is a plan view of the first housing 10 viewed from the side of the appearance surface A, and FIG.
2C is a plan view of the first housing 10 and the second housing 12 seen from above, FIG. 2C is a plan view of the first housing 10 seen from the back side of the appearance surface A, and FIG. 10] is a plan view seen from the main body surface B side of the second housing 12.

As is clear from FIG. 2A, the engaging portion for positioning, that is, the concave groove 22 and the convex portion 24 are not exposed on the side of the first housing 10 on the appearance surface A, which causes a feeling of strangeness. The quality of system A is maintained without giving. Also, FIG.
As is apparent from (b), it can be understood that the connecting portion between the concave groove 22 and the convex portion 24 can be easily visually recognized, and the alignment action can be easily performed.

In the present embodiment, the first housing 1
The concave groove 22 is formed as the first engaging portion on the 0 side, and the second housing 1
Although the example in which the convex portion 24 is formed as the second engaging portion on the second side is shown, the convex portion may be formed as the first engaging portion and the concave groove may be formed as the second engaging portion. The first engaging portion and the second engaging portion may have any shape as long as they engage with each other. For example, as shown in FIG. The same effect as in the present embodiment can be obtained with the cylindrical convex portion 24 that engages with it. Further, the positions where the concave groove 22 and the convex portion 24 are arranged may be any positions as long as they are not exposed to the appearance surface A. For example, as shown in FIG. Even if it is formed in the same manner, the same effect as this embodiment can be obtained.

Further, in the present embodiment, an example in which the plate-shaped first housing 10 and the second housing 12 are combined is shown, but the shape of each housing is an example and can be appropriately selected. Of course, a plurality of second casings 12 can be connected to the first casing 10.

[0026]

As described above, according to the present invention,
Since the first engaging portion and the second engaging portion are not exposed on the appearance surface,
It is possible to prevent the appearance quality of the assembled housing from being impaired. Further, even when the folded-back portion is present, the engaging positions of the first engaging portion and the second engaging portion can be easily visually recognized, and the positioning work can be easily performed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view illustrating a positioning structure for an assembled housing according to the present invention.

FIG. 2 is an assembly plan view illustrating a positioning structure of an assembly housing according to the present invention.

FIG. 3 is another exploded perspective view for explaining the positioning structure of the assembled casing according to the present invention.

FIG. 4 is an exploded perspective view illustrating a conventional positioning structure for an assembled housing.

[Explanation of symbols]

10 first housing, 10a insertion hole, 12 second housing, 1
2a screw hole, 14 first flange, 16 screw, 18
2nd flange, 20 fixed flange, 22 concave groove (1st engaging part), 24 convex part (2nd engaging part), A A surface.

Claims (3)

[Claims] 1. A first housing having a partly appearance surface,
A positioning structure for positioning a second housing connected to the back surface side of the appearance surface of the first housing, the first engagement portion formed on a non-appearance surface of the first housing, A second engaging portion that engages with the first engaging portion and positions the second casing with respect to the first casing; and the first engaging portion and the second engaging portion are exposed on the appearance surface. A positioning structure for an assembled housing characterized by not doing. 2. The structure according to claim 1, wherein the first housing has a folded-back portion that is folded back at a right angle to the rear surface side with respect to the appearance surface, and the first engagement portion includes the folded-back portion. Positioning structure for an assembled housing, characterized in that it is formed at the end of the part. 3. The positioning structure for an assembled housing according to claim 1, wherein the first engaging portion and the second engaging portion have an uneven shape that engages with each other. .