JPH05160756A - Structure for engaging case of small-sized communication equipment - Google Patents

Abstract

PURPOSE:To obtain the structure for engaging the case of small-sized communication equipment in which an upper case and a lower case are engaged with each other with a simple work, the engagement is optionally released without unexpected release and the entire case comprising the upper case and the lower case is made small in size and the enclosed structure is adopted for the case. CONSTITUTION:In the structure for engaging the case of the small-sized communication equipment in which a hook 11 elastically deformed and formed in the inside of a lower case 10 is engaged with a hook reception part 21 formed in the inside of an upper case 20 and the upper case 20 and the lower case 10 are engaged and integrated, a jig insert hole 22 used to elastically deform the hook 11 thereby releasing the engagement with the hook receiving part 21 is formed in a position of the upper case 20 corresponding to the hook and an enclosing plug 30 to block the movement of the hook 11 in the engagement releasing direction is inserted to the jig insert hole 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing engaging structure in a small communication device such as a small radio device.

[0002]

2. Description of the Related Art FIGS. 4 and 5 are enlarged vertical sectional views of a conventional housing engaging structure for a small communication device.

In the conventional example shown in FIG. 4, a container-shaped upper case 1 and a container-shaped lower case 2 are intimately meshed with each other by meshing portions 1a and 2a formed on the peripheral portions of each other, thereby forming a hermetically sealed structure. Case 3 is configured. The hook receiving portion 1b formed on the outer side of the meshing portion 1a of the upper case 1 is connected to the meshing portion 2a of the lower case 2.
The hook 2b formed on the outer side of is elastically deformed and engaged, that is, the upper case 1 and the lower case 2 are engaged outside the case 3. On the other hand, in the conventional example shown in FIG. 5, the hook 6b formed inside the peripheral portion of the container-shaped lower case 6 is elastically deformed to the hook receiving portion 5b formed inside the peripheral portion of the container-shaped upper case 5. And are engaged with each other to form the case 7. That is, the upper case 5 and the lower case 6 are engaged inside the case 7, and the hook receiving portion 5 of the upper case 5 is engaged.
A jig insertion hole 5c for inserting a jig and elastically deforming the hook 6b to disengage the hook 6b is formed near b.

[0004]

However, in the conventional example of FIG. 4, since the upper case 1 and the lower case 2 are engaged with each other outside the case 3, the case 3 can have a hermetically sealed structure. At the same time, it is possible to disengage the hook 2b, but there is a problem that the case 3 inevitably becomes large.

On the other hand, in the conventional example of FIG. 5, since the upper case 5 and the lower case 6 are engaged inside the case 7,
Although the case 7 can be downsized, in order to be able to disengage the hook 6b, the upper case 5
It is necessary to form the jig insertion hole 5c at a position corresponding to the hook 6b, and there is a problem that the case 7 cannot have a closed structure.

Further, in both of the conventional examples shown in FIGS. 4 and 5, the upper case and the lower case can be engaged with each other by a simple operation, but the hooks may be disengaged due to a shock or the like, which is unexpected. However, there is a problem that the upper case and the lower case may be disengaged from each other.

The present invention has been made in view of the above-mentioned problems of the prior art. An object of the present invention is to allow the upper case and the lower case to be engaged with each other by a simple operation, and the engagement can be released at will by accident. It is an object of the present invention to provide a housing engaging structure for a small communication device that is not released and that has a small size and a closed structure for the entire case including an upper case and a lower case.

[0008]

In order to achieve the above object, in a housing engaging structure for a small communication device according to the present invention, an elastically deformable hook formed inside a lower case is
In a housing engaging structure of a small communication device in which a hook receiving portion formed inside the upper case is engaged and the upper case and the lower case are engaged and integrated, the hook is elastically deformed to a hook corresponding position of the upper case. Thus, a jig insertion hole for releasing the engagement with the hook receiving portion is formed, and a sealing plug that prevents the hook from moving in the engagement releasing direction is inserted into the jig insertion hole.

According to a second aspect of the present invention, the hook is loosely fitted in the jig insertion hole when engaged with the hook receiving portion, and the sealing plug closes a gap between the hook and the jig insertion hole. It has a shape.

Further, according to a third aspect of the present invention, the closure plug is formed with a retaining hook portion which engages with the peripheral edge of the jig insertion hole to prevent the closure plug from coming off.

[0011]

In order to engage the upper case and the lower case, the hook of the lower case may be elastically deformed and engaged with the hook receiving portion of the upper case, which facilitates the engaging work of the upper case and the lower case. is there. That is, if the upper and lower cases are fitted so that the hook and the hook receiving portion are aligned with each other, the hook is elastically deformed and the hook and the hook receiving portion are engaged with each other.

Further, the hook can be elastically deformed to disengage the hook by inserting a jig or the like through the jig insertion hole, and the engagement between the upper case and the lower case can be easily released.

Since the sealing plug inserted into the jig insertion hole seals the jig insertion hole, dust or the like does not enter the case.

Since the sealing plug prevents the hook from moving in the disengagement direction and the engagement between the hook and the hook receiving portion is maintained,
The engagement between the upper case and the lower case is not abruptly released due to a shock or the like.

Since the hook is formed inside the lower case and the hook receiving portion is formed inside the upper case, a conventional example in which the hook is formed outside the lower case and the hook receiving portion is formed outside the upper case (see FIG. 4). Compared with, the entire case including the upper case and the lower case can be downsized.

[0016]

Embodiments of the present invention will now be described with reference to the drawings.

1 and 2 show the present invention applied to a small radio device. FIG. 1 is an enlarged vertical sectional view of a housing engaging portion of the small radio device, and FIG. 2 is an exploded perspective view of the engaging portion. It is a figure.

In these drawings, reference numeral 10 and reference numeral 20
Is a lower case made of synthetic resin in the shape of a container,
The upper case is shown.

Reference numeral 11 denotes a hook having a vertical sawtooth shape formed upward inside the lower case 10. Inside the upper case 20, a hook receiving portion 21 having a vertical sawtooth shape corresponding to the hook 11 faces downward. Has been formed. Then, when the lower case 10 and the upper case 20 are pressed against each other so that the slanted surface 21a of the hook receiving portion 21 having the vertical sawtooth shape is slid on the slanted surface 11a of the hook 11 having the serrated vertical section, the hook 11 is elastically deformed. Then, the flat surface 11b of the hook 11 engages with the flat surface 21b of the hook receiving portion 21, and the lower case 10 and the upper case 20 are combined and integrated.

The upper case 20 is provided with a jig insertion hole 22 into which the tip portion 12 of the hook 11 is loosely fitted when the hook 11 is engaged with the hook receiving portion 21. If a jig such as a flat-blade screwdriver is inserted into the jig insertion hole 22 from the outside of the upper case 20 and the hook slope 11a is pressed in the direction opposite to the hook receiving portion 21 (leftward in FIG. 1), the hook receiving portion 21 is released. The hook 11 can be disengaged. In the gap 23 formed between the hook tip portion 12 and the jig insertion hole 22, an elastic bushing 30 which is a cylindrical soft synthetic resin sealing plug capable of sealing the gap 23 is inserted. The hook slope 11a presses and urges the elastic bushing 30 toward the outside of the upper case 20, but the hook 31 has a serrated vertical cross section formed downward on the outer surface of the elastic bushing 30.
However, the elastic bushing 30 is prevented from coming off by being engaged with the lower surface 22a of the peripheral edge portion of the jig insertion hole 22. Further, the hook back surface 11c opposite to the hook slope 11a is provided on the back surface 11c.
The portion of the inner peripheral surface (hook contact portion) 32 of the tubular elastic bushing 30 corresponding to is pressed in the direction for holding the engagement of the hook 11.

The outside of the hook 11 of the lower case 10,
The lower case 10 is provided outside the hook receiving portion 21 of the upper case 20.
When the upper case 20 and the upper case 20 are engaged with each other, peripheral portions 10a and 20a are formed which are joined to each other in a close contact state.
Therefore, when the elastic bushing 30 is attached, the entire case including the lower case 10 and the upper case 20 has a sealed structure.

FIG. 3 is an enlarged vertical sectional view of another embodiment of the present invention and corresponds to FIG. In the first embodiment,
The tip portion 12 of the hook 11 was loosely fitted in the jig insertion hole 22, and the sealing plug 30 was formed in a tubular shape. However, in this embodiment, the tip portion 14 of the hook 13 is below the jig insertion hole 22. At the same time, the sealing plug 40 is formed in a container shape with a ceiling.

That is, in this embodiment, the elastic bushing 4 is used.
By inserting 0 into the jig insertion hole 22, the entire hole 22 is closed. Also, the hook tip 1
4 is located below the jig insertion hole 22.
The hook 13 can be disengaged from the hook receiving portion 21 by prying the hook tip portion 14 in a direction opposite to the hook receiving portion 21 with a jig as in the case of the embodiment. Incidentally, reference numeral 41
Is a retaining hook portion formed on the lower outer surface of the elastic cap 40 and engaged with the lower surface 22 a of the peripheral edge portion of the jig insertion hole 22. Further, reference numeral 42 is a hook contact portion which is formed below the elastic cap 40 and which contacts the hook back surface 13c so as to prevent the hook 13 from moving in the engagement releasing direction. In addition, between the hook abutting portion 42 and the hook 13, as shown in FIG.
Even if the gap as shown in (3) is formed, it is sufficient if the hook 13 is not disengaged due to vibration or the like.

In the above embodiments, a small radio device has been described as an example, but the present invention can be widely applied to all small communication devices.

[0025]

As is apparent from the above description, according to the present invention, the engaging work of the upper case and the lower case is simple, so that the assembling work is efficient.

Since the engagement between the upper case and the lower case can be arbitrarily released, the case assembled from the upper case and the lower case can be inspected and repaired even after the assembly, and maintainability is improved. Good.

Since the engagement between the upper case and the lower case is not suddenly released by a shock or the like, a sturdy product can be provided.

Since the jig insertion hole is sealed by attaching a sealing plug to the jig insertion hole, if the structure other than the engaging portion composed of the hook and the hook receiving portion also has a sealing structure, the upper case and the lower case can be separated from each other. It is also possible to make the entire case a closed structure.

[Brief description of drawings]

FIG. 1 is an enlarged vertical cross-sectional view of a housing engaging portion of a small radio device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the engaging portion.

FIG. 3 is an enlarged vertical sectional view of a housing engaging portion according to another embodiment of the present invention.

FIG. 4 is an enlarged vertical sectional view of a housing engaging portion of a conventional small radio device.

FIG. 5 is an enlarged vertical cross-sectional view of a housing engaging portion of another conventional small radio device.

[Explanation of symbols]

 10 Lower case 11,14 Hook 20 Upper case 21 Hook receiving part 22 Jig insertion hole 30,40 Elastic bushing which is a sealing plug 31 Hook contact part

Claims (3)

[Claims] 1. A compact communication device in which an elastically deformable hook formed inside a lower case engages a hook receiving portion formed inside the upper case, and the upper case and the lower case are engaged and integrated. In the housing engagement structure, a jig insertion hole for elastically deforming the hook to release the engagement with the hook receiving portion is formed at a position corresponding to the hook of the upper case. A housing engaging structure for a small communication device, wherein a sealing plug for preventing movement in a disengagement direction is inserted. 2. The hook is loosely fitted in the jig insertion hole when engaged with the hook receiving portion, and the sealing plug has a tubular shape that closes a gap between the hook and the jig insertion hole. The casing engagement structure for a small communication device according to claim 1. 3. The small-sized communication device according to claim 1, wherein the closure plug is formed with a retaining hook portion that engages with a peripheral edge of the jig insertion hole to prevent the closure stopper from coming off. Enclosure engagement structure.