JP2001094646A - Structure for fixing colored part for antenna mount of mobile phone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To excellently fix a ring to the tip of the antenna mount of a mobile phone. SOLUTION: An antenna mount 13 and an antenna 20 are fitted to a case main body 10 so that the antenna mount 13 is cylindrically projected from the case main body 10 and the antenna 20 is extended to the tip of the antenna mount 13. A cap 90 is contained in the antenna mount 13 and has a ring shaped plated layer 91 placed at its tip. An antenna fixing screw 60 is contained in the cap 90 and the antenna 20 is inserted into the antenna fixing screw 60. Since the cap 90 is fixed to the case main body 10 by fixing the antenna fixing screw 60 and a case feeding terminal 80, the cap 90 is excellently fixed to the case main body 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a colored part fixing structure for an antenna mounting part in a portable telephone.

[0002]

2. Description of the Related Art Conventionally, a cellular phone has a substantially rectangular case body, a substantially rod-shaped antenna, and an antenna mounting portion.
The antenna attachment portion is formed to project from a part of the case body in a cylindrical shape. The antenna is mounted so as to extend from the antenna mounting portion in the axial direction.

[0003]

By the way, in the above-mentioned portable telephone, the same color as that of the case main body is formed on the surface of the antenna mounting portion, so that it has a uniform appearance.

The present inventors have considered providing a ring-shaped plating portion on the tip end side of the antenna mounting portion in order to differentiate the design of the above-mentioned portable telephone. We examined forming a plated part by directly plating only the tip of the antenna mounting part.

However, in order to perform the plating process, the antenna mounting portion is integrated with the case main body, so that the portion other than the tip end portion of the antenna mounting portion and the case main body are prevented from being plated. It is necessary to use a process (using a resin material that cannot be plated or using a mask process). Therefore, the area which needs to avoid the plating process is large.

In view of the above, it has been considered that a ring-shaped member is provided with a plated portion separately from the antenna mounting portion and the case main body, and this plated portion is fixed to the tip of the antenna mounting portion with an adhesive. When an adhesive is used, there is a problem that it takes time to fix the plated portion to the antenna mounting portion.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a colored portion fixing structure for an antenna mounting portion of a mobile phone, which can fix the ring-shaped colored portion to the tip of the antenna mounting portion. I do.

[0008]

According to the present invention, in order to achieve the above object, according to the first aspect of the present invention, a case body (10), a rod-shaped antenna (20), and a part of the case body are provided. An antenna mounting portion (13) for mounting the antenna so that the antenna extends to the tip end side thereof, and an antenna mounting portion formed in a cylindrical shape and housed in the antenna mounting portion. A storage member (90) having a colored portion (91) formed in a ring shape so as to be disposed on the distal end side of the portion, and stored in the storage member, and the antenna extends in the axial direction from within the storage member. And a fixing member (60) penetrating the storage member and fixed to the case body together with the storage member.

As described above, since the housing member is fixed to the case body by the fixing member, the housing member can be satisfactorily fixed to the case body. Here, since the colored portion is formed on the housing member, the housing is fixed to the case body at the same time as the housing member is fixed to the case body. Therefore, the colored portion can be fixed satisfactorily to the case body. However, the ring of the present invention includes a polygonal ring in addition to a circle and an ellipse.

According to the second aspect of the present invention, there is provided a facing member (80) housed in the case body and facing the housing member via a part (16) of the case body. Then, the storage member may be fixed to the case main body side by fixing the facing member and the fixing member with a part of the case main body interposed therebetween.

Here, as in the invention according to claim 3,
If the opposing member and the fixing member are fixed by screws, the opposing member and the fixing member can be fixed even better.

Further, as in the invention according to claim 4,
If a power supply terminal for supplying power to the antenna is used as the facing member, there is no need to employ an extra member.

[0013] Here, as described in the first aspect, since the storage member is stored in the antenna mounting portion, the radial dimension of the antenna mounting portion is made larger than that of the conventional one, so that the antenna mounting portion is made larger. Although it is desirable to secure the strength in the radial direction, it is not preferable in design to increase the radial dimension of the antenna mounting portion.

Therefore, as in the invention according to claim 5,
By forming inside convex portions (13a to 13b) projecting inward from the case body side to the distal end portion side inside the antenna mounting portion, it is possible to suppress an increase in the radial dimension of the antenna mounting portion and reduce the size of the antenna mounting portion. Radial strength can be maintained.

Incidentally, the reference numerals in parentheses of the above means are examples showing the correspondence with specific means described in the embodiments described later.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIGS. 1 to 3 show an example of a portable telephone according to the present invention. FIG. 1 is a front view of a mobile phone, FIG. 2 is a side view of the mobile phone, and FIG. 3 is a view showing the inside of a rear case of the mobile phone. As shown in FIG. 1, the mobile phone includes a case body 10.
(Made of ABS resin) and an antenna 20. In FIG. 1, reference numeral 30 denotes a liquid crystal panel, and reference numerals 40 to 51 denote operation keys.

As shown in FIG. 2, the case main body 10 is formed in a substantially rectangular shape, and a front side case portion 11 and a back side case portion 12 are combined. As shown in FIG. 3, a tubular antenna mounting portion 13 is provided on the back case portion 12, and the antenna mounting portion 13 is formed to protrude from the top 12 a of the back case portion 12 in the longitudinal direction of the case body 10. However, the antenna mounting portion 13 is
And are integrally formed. Also, the antenna mounting portion 13
As shown in FIG. 1, the antenna top 21 is protected from external stress when the mobile phone is dropped by covering a lower portion of the antenna top 21 described below while being stored in the case 10.

Inside the rear case part 12, a case inner cylinder part 14 is formed.
2a is formed so as to protrude in the longitudinal direction of the case body 10;
It communicates with the opening of the antenna mounting portion 13 via an annular portion (hereinafter, referred to as an annular portion 16). The annular portion 16 is formed so as to protrude radially inward from a part of the inner wall of the antenna mounting portion 13 (see FIG. 12). The case inner cylindrical portion 14 is integrally formed with the back case portion 12.

The antenna 20 is attached to the case body 10 so as to extend from the antenna attachment portion 13 in the axial direction. As shown in FIG. 4, the antenna 20 includes an antenna top 21, an antenna feed terminal 22, a shaft 23, and an antenna feed terminal 24. The antenna top 21, the antenna feed terminal 22, the shaft 23, and the antenna feed terminal Reference numerals 24 are each formed in a substantially columnar shape. The antenna 20 includes an antenna top 21, an antenna feed terminal 22, a shaft 23, and an antenna feed terminal 24 in this order.
Each is coaxially connected.

Next, the structure for fixing the ring to the distal end of the antenna mounting portion 13, which is a feature of the present invention, will be described with reference to FIGS. As shown in FIG. 4, in order to attach the antenna 20 to the antenna attaching portion 13 together with the attachment of the ring (decorative ring), the mobile phone has an antenna fixing screw (fixing member) 60 with a cylindrical cap 90 having a ring 91. Annular spacer 70 and case power supply terminal 80
(Corresponding member). The ring in the present invention is not limited to a circle and an ellipse, but also includes a polygon.

The antenna fixing screw 60 is composed of a screw main body 61 and a head 62, and a screw 61a is formed on the outer wall of the screw main body 61. The antenna fixing screw portion 60 has a through hole 60a formed in the axial direction thereof.
a is the antenna feed terminals 22, 24 of the antenna 20;
And the shaft part 23 is formed so that insertion is possible.

Here, the antenna top 21 plays a role of preventing the antenna fixing screw portion 60 from coming off from the antenna 20, and a tip end side of the antenna feed terminal 24 has
A retaining portion 24a from the antenna 20 at the antenna fixing screw portion 60 is formed. Spacer 70 (made of rubber)
Has an opening 71, through which the screw body 61 of the antenna fixing screw part 60 is inserted.

The case power supply terminal 80 is composed of a cylindrical screw portion 81 and a terminal main body 82.
As shown in the figure, the housing is housed in the rear case part 12 and inserted into the case inner cylindrical part 14. An antenna fixing screw 60 is provided on the inner wall of the through hole 83 in the cylindrical screw portion 81.
The screw 81a for fastening to is formed. The case power supply terminal 80 is electrically connected to a transmission / reception circuit on a printed circuit board (not shown), and is also electrically connected to the antenna fixing screw 60.

Here, the antenna 20 is connected to the antenna mounting portion 1.
3, the antenna fixing screw 60 is
The antenna feeding terminal 24 is electrically connected to the antenna feeding terminal 24, and is connected to the transmitting / receiving circuit via the case feeding terminal 80 through the antenna fixing screw portion 60. When the antenna 20 is housed in the antenna mounting portion 13, the antenna fixing screw portion 60 is electrically connected to the antenna feeding terminal 22, and the antenna feeding terminal 22 is connected to the case feeding terminal through the antenna fixing screw portion 60. It is connected to the transmission / reception circuit via 80.

The cap (storage member) 90 has a ring 91 attached to the distal end thereof in a state housed in the antenna mounting portion 13.
The structure of the cap 90 will be described below with reference to FIGS. 5 is a front view of the cap 90, FIG. 6 is a top view of the cap 90, FIG. 7 is a bottom view of the cap 90, FIG. 8 is a sectional view taken along line AA of FIG.
9 is an enlarged view of a portion C in FIG.

As shown in FIG. 5, the cap 90 includes a leg 91a, 92b, 92c and a bottom 9 together with a ring 91.
8 and 9 on the surface of the ring 91.
As shown by B in the figure, a silver plating layer 91a (colored layer) is formed.

As shown in FIG. 7, the legs 92a, 92b,
Each of 92 c is formed to extend from the radially inner part of the back surface of the ring 91 toward the bottom 93 from the outer periphery. Thereby, a side opening 94a is formed between the legs 92a and 92b, a side opening 94b is formed between the legs 92b and 92c, and a side opening is formed between the legs 92c and 92a. An opening 94c is formed.

Next, the structure of the antenna mounting portion 13 for housing the cap 90 will be described with reference to FIG. FIG. 11 is a cross-sectional view showing a state in which the cap 90 is stored in the antenna mounting portion 13. Antenna mounting part 13
Are formed with convex portions 13a, 13b and 13c, and the convex portion 1
Each of 3a to 13c is formed to protrude radially inward from the case body 10 side to the axial end.

As a result, a concave portion 15a is formed between the convex portion 13a and the convex portion 13b, and the convex portion 13b and the convex portion 13c are formed.
A recess 15b is formed between them. Then, a concave portion 15c is formed between the convex portion 13c and the convex portion 13a. here,
The legs 92a to 92c of the cap 90 are fitted into the recesses 15a to 15c of the antenna mounting portion 13, respectively, and the side openings 94a to 94c of the cap 90 respectively
The protrusions 13a to 13c of the antenna mounting portion 13 are fitted.

Next, prior to the description of the mounting method of the antenna 20, the formation of the cap 90 will be described. Ring 9
1 (except for the plating layer 91a) is made of ABS resin, and the legs 92a to 92c and the bottom 93 are made of polycarbonate resin. Cap 90
Is formed by two-color molding using an ABS resin and a polycarbonate resin.

Here, the plating layer 91a is formed by electroless plating. The ABS resin can be plated, but the polycarbonate resin cannot be plated. Therefore, when forming the plating layer 91a, a mask is applied to a portion of the ring member 91 other than the tip and the case body 10. No processing is required.

The method of mounting the antenna 20 will now be described with reference to FIG.
This will be described with reference to FIG. First, the back case 12
(Case 10), antenna fixing screw 60 into which antenna 20 is inserted, annular spacer 70, case feeder terminal 80,
And the cap 90 are separately prepared, and the cylindrical screw portion 81 of the case power supply terminal 80 is housed in the case inner cylindrical portion 14 of the back side case portion 12.

Next, the bottom 93 of the cap 90 is opposed to the upper opening 90a of the antenna mounting portion 13, and
Of the antenna mounting portion 1
3 are fitted into the recesses 15a to 15c, and the projections 13a to 13c of the antenna mounting portion 13 are fitted into the side openings 94a to 94c of the cap 90, respectively. As a result, as shown in FIG.
The upper opening 90a and the bottom opening 93a of the cap 90, the opening 16a of the annular portion 16, and the through-hole 83 of the case power supply terminal 80 communicate with each other. Here, the ring 91 is disposed on the distal end side of the antenna mounting portion 13, and the bottom portion 93 of the cap 90 faces the case power supply terminal 80 with the annular portion 16 of the case body 10 interposed therebetween.

Next, as shown in FIG. 13, the antenna fixing screw 60 into which the antenna 20 is inserted is
The antenna fixing screw 60 is inserted into the antenna mounting portion 13 together with the antenna 20 through the through hole 71 of the antenna. Then, the antenna fixing screw 60 is fastened to the cylindrical screw portion 81 of the case power supply terminal 80 through the annular portion 16 of the case main body 10.

As a result, the antenna fixing screw 60 is fastened to the case power supply terminal 80 while sandwiching the annular portion 16 of the case main body 10, so that the cap 90 is fixed to the case main body 10 by the antenna fixing screw 60. The fastening of the antenna fixing screw 60 and the case power supply terminal 80 is performed using a dedicated jig (driver) that engages with the cross groove formed in the head 62 of the antenna fixing screw 60.

As described above, the cap 90 is fixed to the case main body 10 by fixing the antenna fixing screw 60 together with the case power supply terminal 80 to the annular portion 16 (the case main body 10). Can be fixed well. Here, since the ring 91 (plated layer 91a) is formed on the cap 90, the ring 91 can be fixed to the case body 10 in a satisfactory manner. Here, since the fixing of the antenna fixing screw 60 and the case power supply terminal 80 is performed by screw fixing, workability is good.

The antenna mounting portion 13 is provided with a cap 9
In order to secure the radial strength, it is desirable to make the radial dimension larger than before, but increasing the radial dimension of the antenna mounting portion 13 is not preferable in terms of design. . On the other hand, by forming the protrusions 13a to 13c in the antenna mounting portion 13, without increasing the radial dimension as compared with the related art,
The radial strength of the antenna mounting portion 13 can be secured.

In order to differentiate the design of the mobile phone, a conductive plating layer 91a (ring 91) is provided.
However, since the plating layer 91a is disposed only at the tip of the antenna mounting portion 13, the plating layer 91a
Since the electrical insulation between the antenna 20 and the antenna 20 can be ensured, the plating layer 91a does not affect the performance of the antenna 20.

[0040]

[Brief description of the drawings]

FIG. 1 is a front view of a mobile phone according to an embodiment of the present invention.

FIG. 2 is a side view of the mobile phone shown in FIG.

FIG. 3 is a front view showing the inside of the rear case shown in FIG. 2;

FIG. 4 is a diagram showing a structure of an antenna of the mobile phone shown in FIG. 1;

FIG. 5 is a front view of the cap shown in FIG. 4;

FIG. 6 is a top view of the cap.

FIG. 7 is a bottom view of the cap.

FIG. 8 is a sectional view taken along line AA in FIG. 7;

FIG. 9 is a partially enlarged view of FIG.

FIG. 10 is a right side view of the cap.

FIG. 11 is a radial cross-sectional view of a state in which a cap is stored in an antenna mounting portion.

FIG. 12 is an axial end view in a state where an antenna is attached to an antenna attachment portion.

FIG. 13 is a diagram for explaining assembly of a cap.

[Explanation of symbols]

10: Case body, 13: Antenna mounting part, 13a-1
3c: convex portion, 20: antenna, 16: boundary portion, 60: antenna fixing screw, 80: case feeding terminal, 90: cap, 91: ring.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Naoki Sakai 1-1-1, Showa-cho, Kariya-shi, Aichi F-term in DENSO Corporation (reference) 5J046 AA09 AB06 FA09 5J047 AA09 AB06 FA04 FA09 5K023 AA07 BB01 LL05 QQ05 RR05 5K067 AA41 EE02 KK01 KK17

Claims (5)

[Claims] 1. A case body (10), a rod-shaped antenna (20), and a cylindrical projecting part of the case body, the antenna being extended to a tip end side thereof. An antenna mounting portion (13) for mounting; and a colored portion (91) formed in a cylindrical shape and housed in the antenna mounting portion and formed in a ring shape so as to be disposed on the distal end side of the antenna mounting portion. And a storage member (90) having the antenna is inserted into the storage member so that the antenna extends in the axial direction from the storage member, and the antenna is inserted through the storage member. A fixing member (6) fixed to the case body together with the storage member
0), wherein the colored portion fixing structure of the antenna attachment portion of the mobile phone is provided. 2. An opposing member (80) housed in the case main body and facing the housing member via a part (16) of the case main body, wherein the housing member is provided with the opposing member and the fixed member. The colored part fixing structure for an antenna mounting part of a mobile phone according to claim 1, wherein the members are fixed to the case main body side by fixing the members with a part of the case main body interposed therebetween. 3. The colored part fixing structure for an antenna mounting part of a mobile phone according to claim 2, wherein the facing member and the fixing member are fixed by screws. 4. The colored part fixing structure for an antenna mounting part of a mobile phone according to claim 2, wherein the facing member is a power supply terminal of the antenna. 5. An inner projection (13a to 13c) protruding radially inward from the case body side to a tip end side is formed inside the antenna mounting portion. 5. The colored portion fixing structure of the antenna attachment portion of the mobile phone according to any one of Items 4 to 4.