Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2000-10-25
2001-12-04
Phan, Tho (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S900000, C343S901000
Reexamination Certificate
active
06326928
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to an antenna fixing method and an antenna fixing device, and more particularly to a construction in which an external thread portion of an antenna holder is connected to an internal thread portion of an antenna holder-receiving member provided on an antenna guide, and in this condition the antenna is mounted on and fixed to a casing, and after the fixing, the antenna can be removed from a body box member by disconnecting the antenna holder from the antenna holder-receiving member by loosing the threads.
A portable terminal equipment, such as a portable cellular telephone and a PHS (Personal Handyphone System), is equipped with an antenna. For mounting this antenna on the portable terminal equipment, a first step is to beforehand fix an antenna holder-receiving member to a body box member. A second step is to insert an antenna body, having an antenna holder integrally connected thereto, into the antenna holder-receiving member. A third step is to screw and connect the antenna holder to an internal thread portion of the antenna holder-receiving member. Thus, this mounting operation is carried out by the three steps.
However, in the above operation, the assembling operation is effected on the body box member, and the operation for inserting the antenna body into the antenna holder-receiving member and the operation for threadedly connecting the antenna holder to the antenna holder-receiving member are not suited for an automated operation, and therefore there has been encountered a problem that the time, required for assembling the portable cellular telephone, can not be reduced.
FIG. 4
is an exploded, perspective view explanatory of a conventional antenna mounting-fixing method. In
FIG. 4
, in an assembling operation, first, an antenna holder-receiving member
5
, having an antenna guide
8
and an antenna terminal
6
connected thereto, is received in a predetermined position in a lower casing
3
. In
FIG. 4
, for showing the assembled condition, although the antenna holder-receiving member
5
is shown as slightly floating relative to the lower casing
3
, the antenna holder-receiving member
5
is finally held in intimate contact with the lower casing
3
, so that a hole in the antenna holder-receiving member
5
communicates with an antenna body passage hole
7
. Thereafter, an upper casing
9
is attached, and the antenna holder-receiving member is held between the lower casing
3
and the upper casing
9
, thereby fixing it.
On the other hand, outside the lower casing
3
, there is prepared an antenna body
1
passing through an antenna holder
2
, and this is introduced into the antenna body passage hole
7
, and is guided to the antenna holder-receiving member
5
mounted within the lower casing
3
.
Thereafter, an external thread portion, formed on the antenna holder
2
, is connected to an internal thread portion, formed on the antenna holder-receiving member
5
, through a washer
4
. By dosing so, the antenna is mounted and fixed.
However, when the antenna body
1
is bent or broken from some cause while the user uses the portable cellular telephone, the antenna body
1
need to be exchanged. In order to simplify the exchanging operation as much as possible, there has been used, as a method of exchanging the antenna body
1
, a standard exchanging method in which the antenna holder
2
is rotated by the use of a special tool so as to loosen the threads, and the antenna body
1
, together with the antenna holder
2
, is disconnected from the antenna holder-receiving member
5
, and a new antenna body
1
, having an antenna holder
2
attached thereto, is passed through the antenna holder-receiving member
5
, and the antenna holder
2
is rotated to be threadedly connected to the antenna holder-receiving member
5
, thereby effecting the mounting operation. This exchanging operation method has already been substantially a standard operation method in the industry, and there has been encountered a problem that it is difficult to change the above conventional structure.
SUMMARY OF THE INVENTION
This invention seeks to solve the above problem of the conventional art, and an object of the invention is to provide an antenna fixing method and an antenna fixing device, in which an external thread portion of an antenna holder is connected to an internal thread portion of an antenna holder-receiving member provided on an antenna guide, and in this connected condition, the antenna can be mounted on and fixed to a casing.
According to the first aspect of the invention, there is provided an antenna fixing method wherein an external thread portion of an antenna holder, mounted on an antenna body, is beforehand connected to an internal thread portion of an antenna holder-receiving member provided on an antenna guide; and in this connected condition, an antenna is passed through an antenna body passage hole formed in a casing; and a fastening member is mounted in a fitting portion, which is formed in the casing so as to fix the antenna, and is disposed in the vicinity of the antenna body passage hole, thereby fixing the antenna.
With this construction, the antenna, having the antenna holder, and the antenna holder-receiving member can be incorporated in an integrally-connected posture into a body box member, and therefore the mounting and fixing can be carried out without using much labor and time.
According to the second aspect of the invention, there is provided an antenna fixing device wherein the device comprises an antenna holder mounted on an antenna body, an antenna holder-receiving member provided on an antenna guide, a casing having an antenna body passage hole and a fitting portion which is provided in the vicinity of the antenna body passage hole so as to receive a fastening member, and the fastening member for fixing an antenna; and an external thread portion of the antenna holder is beforehand connected to an internal thread portion of the antenna holder-receiving member, and in this connected condition, the antenna is passed through the antenna body passage hole, and the fastening member is mounted in the fitting portion, thereby fixing the antenna.
With this construction, the antenna, having the antenna holder, and the antenna holder-receiving member can be incorporated in an integrally-connected posture into the body box member, and therefore the mounting and fixing can be carried out without using much labor and time.
The third aspect of the invention is directed to an antenna fixing device according to the second aspect of the invention, wherein the fastening member has an antenna terminal.
With this construction, the mounting and fixing can be carried out without using much labor and time, and besides this can be used also as the antenna terminal.
The fourth aspect of the invention is directed to an antenna fixing device according to the second aspect of the invention, wherein a washer is interposed between the antenna holder and the antenna holder-receiving member, and also a washer is interposed between the antenna holder-receiving member and the antenna body passage hole.
With this construction, the mounting and fixing can be positively carried out without using much labor and time.
The fifth aspect of the invention is directed to an antenna fixing device according to the fourth aspect of the invention, wherein the washers are composed of silicone rubber.
With this construction, the mounting and fixing can be positively carried out without using much labor and time.
The sixth aspect of the invention of is directed to a portable terminal equipment wherein an antenna is fixed by an antenna fixing device as defined in the second, third, fourth and fifth aspect of the invention.
The mounting and fixing of the antenna can be carried out without using much labor and time, and therefore the portable terminal equipment can be provided at a lower cost.
REFERENCES:
patent: 5177492 (1993-01-01), Tomura et al.
patent: 5757325 (1998-05-01), Saldell
patent: 5917453 (1999-06-01), Uchino et al.
patent: 6052089 (2000-04-
Chihara Hiroyuki
Hamada Nobutoshi
Kitamura Toshiyasu
Ono Hideo
Matsushita Electric - Industrial Co., Ltd.
Pearne & Gordon LLP
Phan Tho
LandOfFree
Antenna fixing method and device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Antenna fixing method and device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna fixing method and device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2560225