JP3433835B2 - Small radio case - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case of a small radio such as a mobile phone or a mobile radio.

[0002]

2. Description of the Related Art As shown in FIG. 6, the housing of a conventional small radio generally has an upper case 1 and a lower case 2 connected by screws 3. In such a case coupling structure, although the coupling is reliable, the number of man-hours for mounting is large and the appearance is poor. Therefore, the upper case 1 and the lower case 2 are also coupled by fitting with elastic claws and grooves or holes. Has been.

[0003]

However, in the above-described conventional housing coupling structure using screws, since components such as a speaker, a microphone, a liquid crystal device, a keypad, and a circuit board are internally provided like a wireless telephone, The structure that allows the inside to be easily exposed by removing the screws may impair the reliability of the product. In addition, since the connection structure of the housing by fitting is inferior in connection force to the screw, there is a problem in connection at a portion where heavy weight is applied.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a casing of a small radio device which can be surely connected and whose inside cannot be easily exposed. And

[0005]

In order to achieve the above object, the present invention comprises two cases connected to each other,
One case is formed at one end and both ends
The other case provided with a locking claw having elasticity and a screw hole
Is engaged with the engaging part that engages with each of the engaging claws and the screw hole.
And a hole for inserting the screw
The threaded joint with the
It is formed in the part where the amount is heavy, and it is fitted by the locking claw and the locking part.
When the fitting part is installed in the case, the weight is heavy.
It is formed on the part other than the part and is provided on the one case.
Inner stop plate holding the same holes on both side walls of the one case
It was formed in.

[0006]

Therefore, according to the present invention, since the fitting connection is made in the case where the total weight of the case is light and the screw connection is made in the part where the total weight of the case is heavy, the case can be surely connected and the screw is removed from the outside. However, since the case is still joined by fitting, only the manufacturer or service person who knows the structure can open the inside, and the user is prevented from damaging the product by opening the inside without permission. Therefore, the reliability of the product can be maintained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, 11 is a front panel which is one case, 12 is a base part which is the other case, 13
Is a battery pack detachably attached to the base portion 12. In the drawing, the upper left side is the tip and the lower right is the base.

The front panel 11 is formed of a synthetic resin material in the shape of a box whose lower surface is opened, and an end engaging claw 14 is formed in the center of the lower portion of the front end wall surface 11a, and side wall surfaces on both side surfaces are formed. Side locking claws 15 and 16 are formed on the lower portions of the end wall surfaces 11a of 11b and 11c, respectively.
Each of the locking claws 14, 15 and 16 has a triangular tip hook at its lower end and has elasticity due to the physical properties of the synthetic resin material forming the front panel 11 as a whole.
Further, the locking claws 15 and 16 are formed in a state where they are open to the outside in a free state.

An intermediate stopper plate 17 having a U-shaped cross section is formed at the center of the front panel 11, and both side walls 1 of the front panel 11 are provided.
It is held between 1b and 11c. Both side walls 11b, 1
1c, as shown in FIG.
bb, 11 cc are formed, and the locking groove 18,
19 are formed, and the inner stopper plate 17 is provided in the locking grooves 18, 19.
Is fitted. Both side walls 11b and 11c are narrowed inward in the free state, so that the locking grooves 18 and 1
By increasing the distance between the locking groove 18 and the groove 9, the inner stopper plate 17 which is slightly longer than that distance is securely held between the locking grooves 18 and 19. The intermediate stop plate 17 has screw holes 20 and 21 formed at both ends thereof, and screw holes 22 and 23 are also formed at both corners of the front panel 11 on the base end side.

On the other hand, the base portion 12 is formed of a synthetic resin material in the shape of a dish having an open upper surface, and the tip end wall surface 12a thereof engages with the end locking claws 14 of the front panel 11. A stop groove 24 is formed. The locking claw 14 and the locking groove 24 are formed so as to fit exactly when the lower end of the front end wall surface 11a of the front panel 11 is aligned with the upper end of the front end wall surface 12a of the base portion 12. . Further, on the bottom surface 12b of the base portion 12, locking holes 25 and 26 are formed at positions corresponding to the side locking claws 15 and 16 of the front panel 11, and further, inside the front panel 11 held by the front panel 11. Screw insertion holes 29, 30 for passing the screws 27, 28 are formed at positions corresponding to the screw holes 20, 21 of the stop plate 17, and the screw 3 is provided at positions corresponding to the other screw holes 22, 23.
Screw insertion holes 33 and 34 for passing the screws 1 and 32 are formed.

The bottom surface 12b of the base portion 12 is formed to be shallow except for a part on the side of the tip end wall surface 12a. Inside the lower portions of both side walls 12c and 12d of that portion, the base portion 12 is provided with a battery from the base end side. Battery pack 1 for attaching and detaching the pack 13
Guide grooves 36 for slidingly guiding the guide rails 35 formed on both side surfaces of the guide rail 3 are formed.

Next, the assembly sequence of the above embodiment will be described. First, as shown in FIG.
On the other hand, by lifting the surface panel 11 at the base end side,
The tip hook 14a of the end locking claw 14 on the tip side is hooked in the locking groove 24 of the base 12. Then the front panel 11
The base end side of is pressed in the direction of arrow A.

As shown in FIG. 4, the side engaging claws 15 and 16 are provided.
Are open to each other in the free state, and when the base end side of the front panel 11 is pressed toward the base part 12 side indicated by the arrow A, the tip hook parts 15a and 16a of the locking claws 15 and 16 are pressed.
Is pressed against the upper ends of both side walls 12c, 12d of the base portion 12 while being bent inward, and finally the locking hole 2
5 and 26, the locking claws 15 and 16 elastically return, and the tip hooks 15a and 16a engage with the edges of the locking holes 25 and 26. As a result, the front panel 11 and the base portion 12 are joined by fitting at three points of the end locking claws 14 and the side locking claws 15 and 16.

In this way, after the front panel 11 and the base portion 12 are joined by fitting, as shown in FIG.
Screw the screws 27 and 28 into the screw insertion holes 29 and 30 of the base portion 12.
Through the screw hole 20 of the inner stop plate 17 of the front panel 11,
The screw connection is completed by screwing into 21 and further screwing other screws 31 and 32 into the screw holes 22 and 23 of the display panel through the screw insertion holes 33 and 34 of the base portion 12. Thereafter, the battery pack 13 is attached to the base portion 12 by pushing the battery rail 13 with the guide rail 35 of the battery pack 13 aligned with the guide groove 36 of the base portion 12.

On the contrary, when removing the front panel 11 from the base portion 12, first the battery pack 13 is removed from the base portion 12, and then the screws 31, 32 and 27, 28 are removed, and then the front panel shown in FIG. 11 side locking claws 15,
By pressing both side walls 11b and 11c of the portion 16 in the inward direction indicated by the arrow B, the locking claws 15 and 16 are bent inward, and the tip hooks 15a and 16 and the locking holes 25 and 26 are engaged. Since the front panel 11 is lifted to the side opposite to the A direction and the tip hooks 15a and 16a are pulled out from the locking holes 25 and 26, the end locking claw 14 and the locking groove 24 are separated. Disengage.

As described above, according to the above-described embodiment, the surface panel 11 and the base portion 12 which form the housing are connected by the engaging claws first and then by the screwing. The inside of the housing cannot be opened by simply removing it. In addition, since it is not known from the outside what the structure of the fitting by the locking claw is, it cannot be opened by the user. Therefore, prevent the product from being damaged by opening the inside. Therefore, the reliability of the product can be maintained. Further, since the parts where heavy parts such as the battery pack 13 are mounted are connected by screws and the parts where other parts are lightly mounted are connected by fitting, the case can be surely connected. it can.

In the above embodiment, the front panel 1
The inside of the housing can be made into a watertight structure by accurately molding the end surfaces where the respective wall surfaces of 1 and the base portion 12 meet, but as shown in FIG. By adopting a meshing structure with the concavo-convex portion 37, it is possible to further improve the water tightness inside the housing.

[0018]

As is apparent from the above embodiment, the present invention has two cases connected to each other and one case
The spacer has elasticity formed at one end and both ends.
Locking claw and screw hole for
Insert the locking part that engages the claw and the screw that engages the screw hole
For connecting the screw holes and
It is formed on the part of the base that is
The fitting connection part by the claw and the locking part is a part of the case
Form it on a part other than the part that is
The screw holes provided in the
Since it is formed on the inner stop plate , the case can be securely connected, and the case is still connected by fitting by simply removing the screw, so only the manufacturer or service person who knows the structure can do the inside. Therefore, it is possible to prevent the product from being damaged because the user cannot open the inside, and the user can keep the reliability of the product.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a housing of a small radio device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing an attachment structure of a center stop plate of the same housing.

FIG. 3 is a schematic partial vertical cross-sectional view showing an assembly sequence of the housing.

FIG. 4 is a schematic cross-sectional view showing the assembly order of the housing.

FIG. 5 is a schematic cross-sectional view showing another embodiment of the same housing.

FIG. 6 is a schematic cross-sectional view of a housing of a conventional small radio device.

[Explanation of symbols]

11 Front panel 12 Base 13 Battery pack 14 End locking claw 15, 16 Side locking claw 17 Middle stop plate 18, 19 locking groove 20, 21, 22, 23 screw holes 24 locking groove 25, 26 Locking hole 27, 28, 31, 32 screws 29, 30, 33, 34 Screw insertion hole 35 Guide rail 36 Guide groove 37 uneven part

Continuation of the front page (72) Inventor, Michiyoshi Kudo, 3-1, Tsunashima-higashi, 4-chome, Kohoku-ku, Yokohama-shi, Kanagawa Matsushita Communication Industrial Co., Ltd. (56) Kaihei 5-325927 (JP, A) JP-A-2-45999 (JP, A) Actual Kaihei 4-34778 (JP, U) Actual Sho 61-144687 (JP, U) Actual Kaihei 1-78077 ( JP, U) Actual Kohei 2-36300 (JP, Y2) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04B 1/034 H04B 1/08 H04B 1/38 H04B 7/24-7 / 26 H04Q 7/32 H01M 2/10 H05K 5/00-5/06

Claims (3)

(57) [Claims] 1. Comprising two cases coupled to each other,
One case is provided with elastic locking claws and screw holes formed at one end and both ends, respectively, and the other case is provided with locking parts that engage with the locking claws and the screw holes. A hole for inserting a mating screw, and a screw coupling portion formed by the screw hole and the screw is formed in a portion of the case where a weight is heavy when parts are mounted, and a fitting coupling is formed by the locking claw and the locking portion. The part is formed on the part of the case other than the part where the weight is heavy when the parts are attached, and it is provided on the one case.
Inner stop plate holding the same holes on both side walls of the one case
A housing for a small radio, which is characterized in that 2. Both side walls of the one case are formed so as to be narrowed inward in a free state, and a locking groove is formed inside thereof, and an inner stopper plate is fitted into the locking groove and held. The housing of the small radio device according to claim 1 . 3. A small radio apparatus characterized by using a small radio housing according to claim 1 or claim 2.