JP2002076730A - Automatic extendable antenna - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic extendable antenna that extends at one-touch. SOLUTION: An approximate center to a lower part of an antenna 2a stored in a cellular phone main body 1 is made a large diameter part 3, and the upper part is made at a small diameter part 4. A stepped part 5 is formed at a boundary of the large diameter part 3 and the small diameter part 4. A spring 8 that extends out the antenna 2a is inserted and attached in the large diameter part 3. An elastic piece 15 is integrally formed. A slide button 14 that slides being pressed by a spring 16 is arranged opposed to the antenna 2a. The slide button 14 is always pressed and slides, and a lock piece 15 is pressed to the antenna 2a by a press piece 18, and gets locked with the stepped part 5. The lock of the lock piece 15 is released by manually sliding the slide button 14 against the spring 16, and the antenna is automatically extends by the elastic force of the spring 8 when it is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna for a portable telephone, and more particularly to an antenna extension mechanism.

[0002]

2. Description of the Related Art An antenna in a conventional portable telephone is
In general, it is of a type that is drawn out by hand when used.

[0003]

However, the conventional portable telephone has a problem that the antenna must be pulled out by hand when the antenna is used.

Accordingly, the present invention has been made in view of the above problems, and has as its object to provide an antenna for a portable telephone which allows the antenna to be extended with one touch.

[0005]

In order to achieve the above object, a first aspect of the present invention is to provide a portable telephone having a length which can be stored in a main body and a large diameter portion extending from a substantially center to a rear end in a longitudinal direction. On the other hand, an antenna made of a hollow columnar body having a distal end formed in a small-diameter portion and a stepped portion formed at a boundary between the large-diameter portion and the small-diameter portion is integrally formed with a hook piece that is hooked on and off the stepped portion. A sliding button that slides in the axial direction of the antenna, a spring that slides the sliding button, and a mobile phone that presses the latching piece of the sliding button toward the stepped portion to lock it. A pressing piece formed on the main body side, a spring inserted into a large-diameter portion of the antenna for automatically extending the antenna, and a stepped portion of the extended antenna are brought into contact with each other to limit the amount of extension. Characterized by being provided with an antenna outlet of a mobile phone body provided A.

According to the first aspect of the present invention, the large diameter portion is formed from the approximate center to the rear end side of the antenna, and the small diameter portion is formed by narrowing the portion leading to the front end to form a boundary between the large diameter portion and the small diameter portion. By forming the stepped portion on the base member, it becomes possible to make the hooking piece of the hooking member detachable via the stepped portion. When the hook of the hook member is hooked on the stepped portion, the antenna is fixed inside the body of the mobile phone. When the hook is released, the elastic force of the spring inserted into the large diameter portion is applied. , The antenna can be automatically extended, and when the antenna is extended, the stepped portion is brought into contact with the antenna outlet of the mobile phone main body to limit the amount of extension of the antenna. In addition, since the antenna is hooked and unlatched by the hanging piece by sliding the sliding button in the axial direction of the antenna, even if the mobile phone is dropped or comes into contact with an object by mistake, the sliding is performed. As long as the button is not slid, the antenna is not extended when the button is pressed, so that it is safe. This makes it possible to extend the antenna with a one-touch operation of sliding the sliding button when using a mobile phone,
The complexity of drawing out by hand is eliminated.

According to a second aspect of the present invention, the antenna having a stepped portion is used as a first-stage antenna, and the second-stage antenna is stored in the first-stage antenna so as to be able to be extended, and at the time of extension, A hook is provided for hooking a rear end of the second-stage antenna to a front end of the first-stage antenna.

According to the second aspect of the present invention, the second-stage antenna is retractably stored in the first-stage antenna, so that the first-stage antenna is vigorously extended by the elastic force of the spring. In this case, the second stage antenna is automatically extended by inertia force and further extended, and the rear end of the second stage antenna is formed into a tapered taper at the tip inside diameter of the first stage antenna, for example. By forming the rear end of the taper into a taper that can be fitted to the inner surface of the taper, the space between the two tapers is fitted and automatically fixed, so that the second stage antenna can be kept extended. Become.

[0009]

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

FIGS. 1 to 5 relate to a first embodiment of the present invention. FIG. 1 is a sectional view of an antenna stored in a portable telephone body, FIG. 2 is a sectional view of a second-stage antenna, and FIG. FIG. 4 is a cross-sectional view of a pressing piece for pressing a hooking piece, and FIG. 5 is a cross-sectional view showing a use state of the antenna.

The automatic extension antenna according to the present invention is made of a conductor such as metal, and as shown in FIG.
Is stored on one side, and the antenna 2 is
a, and a second-stage antenna 2b which is retractably stored inside the first-stage antenna 2a, and is required for communication by extending the first-stage antenna 2a with the second-stage antenna 2b. It is configured to be able to maintain a proper length.

The first-stage antenna 2a has a length that can be stored in the mobile phone main body 1, and has a large-diameter portion 3 from a substantially center to a rear end (lower end in the figure) and a large-diameter portion toward the tip. It is formed in a small diameter portion 4 smaller in diameter than the diameter portion 3, and has a two-stage cylindrical body in which a stepped portion 5 is formed at a boundary between the large diameter portion 3 and the small diameter portion 4. Further, a tapered tapered portion 6 is formed at the tip of the small-diameter portion 4, and a cylindrical portion 7 is connected to the tip. The tapered reduced diameter portion 6 serves as a retaining portion to which a rear end of a second-stage antenna 2b described later is hooked, and a cylindrical portion 7 connected to the tip of the tapered reduced diameter portion 6 is a second-stage antenna. 2b is stored in the first stage antenna 2a.
This is a portion that supports the leading end of the step antenna 2b without play. A spring 8 for extending the antenna 2 is inserted into the large-diameter portion 3 of the first-stage antenna 2a.

As shown in FIG. 2, the second-stage antenna 2b has a head 9 at its tip, and the outer diameter of the large-diameter portion of the head 9 is within the projection 10 formed on the mobile phone main body 1 side. It is formed to have a diameter that allows it to be pushed lightly into
1 are connected in series. The diameter of the cylindrical portion 11 is partially increased at the base end on the head 9 side so as to fit without looseness into the inner diameter of the cylindrical portion 7 formed at the tip of the first-stage antenna 2a.
At the lower end of the cylindrical portion 11, there is provided a tapered hooking piece 13 which can be fitted to the inner surface of the tapered reduced diameter portion 6 formed at the tip of the first stage antenna 2a.

As shown in FIG. 3, the sliding button 14 is formed integrally with a latching piece 15 which is elastically bendable inwardly from plastic. A spring 16 for sliding the antenna 14 in the axial direction of the antenna 2 by elastic force is inserted, and a button 17 for manually sliding the slide button 14 is integrally formed on the front side.

On the other hand, as shown in FIGS.
A pressing piece 18 that presses toward the antenna in order to lock the hooking piece 15 of 4 with the stepped portion 5 of the first-stage antenna 2a is integrally formed on the mobile phone main body 1 side. The pressing piece 18 is formed so as to be gradually higher from the distal end to the base end. The highest portion is the hooking portion 19 for pressing the hooking piece 15 toward the antenna, and the lowest portion is the hooking piece 15. By moving to the position, the latching piece 15 is bent back by its own elastic force to form an opening 20 having a shape in which the latching is released as shown in FIG.

Normally, the slide button 14 is pressed by the elastic force of the spring 16 and moves in the direction P in FIG.
The first-stage antenna 2a is pressed by a locking portion 19 of a pressing piece 18 integrally formed on the mobile phone body 1 side.
Is locked to the stepped portion 5 of the helmet. Thereby, the first-stage antenna 2a is fixed in the mobile phone main body 1 and the stored state is maintained. When the antenna 2 is used, the slide button 14 is manually slid in the Q direction in FIG.
The retaining piece 15 warps due to its own elastic force, and the pressing piece 18
To the open part 20 of. As a result, the locking of the locking piece 15 is released, and the first-stage antenna is automatically extended by the elastic force of the spring 8.

On the other hand, the antenna outlet 1 of the mobile phone body 1
The inner diameter 9 is such that the small-diameter portion 4 of the first-stage antenna 2a can slide smoothly, and the stepped portion 5 comes into contact with the back surface of the antenna outlet 19 when the first-stage antenna 2a is extended. This limits the payout amount. A buffer 21 made of, for example, rubber or a soft plastic material is provided on the back side of the antenna outlet 19 with which the stepped portion 5 of the first-stage antenna 2a contacts, in order to reduce the impact of the contact. ing.

With this configuration, the first-stage antenna 2a is normally hung by the hooking piece 15 and housed in the portable telephone body 1 as shown in FIG. In the case of using the hook 2, the hook 15 is moved in the direction away from the first-stage antenna 2 a by sliding the slide button 14 with the fingertip in the Q direction as shown in FIG. You. As a result, the first-stage antenna 2a is automatically extended from the main body 1 by the pressing force of the spring 8.

The amount of extension at this time is limited by contacting the antenna outlet 19 of the portable telephone body 1. In addition, the shock with which the stepped portion 5 comes into contact is mitigated by the cushioning material 21 provided at the antenna outlet 19.

Further, the second stage antenna 2b is automatically extended from the first stage antenna 2a by inertia due to the impact. In this case, since the first-stage antenna 2a is formed thinner than the inner diameter of the cylindrical portion 7 at the tip of the first-stage antenna 2a except for the base end and the rear end on the head 9 side, the first-stage antenna 2a can be pulled out without resistance. In the extended second-stage antenna 2a, a tapered hooking piece 13 provided at the rear end thereof is fitted into the tapered reduced diameter portion 6 at the tip of the first-stage antenna 2a, and the extended state is maintained.

When the antenna 2 is to be stored in the main body 1 of the portable telephone, the sliding button 14 is slid downward by the elastic force of the spring 16 as shown in FIG. Then, the locking piece 15 is pressed by the pressing portion 19 and is automatically locked on the stepped portion 5 of the first antenna 2a.
As a result, the antenna is fixed inside the mobile phone body 1,
The storage state is maintained. The automatic extension type antenna of the present invention can be applied not only to a mobile phone but also to an antenna of another device.

[0022]

According to the present invention, the automatic extension type antenna provided in the portable telephone can be extended with one touch only by sliding the slide button.
This eliminates the trouble of pulling out the antenna by hand.

[Brief description of the drawings]

FIG. 1 is an exemplary sectional view showing a state in which an antenna is stored in a main body of a mobile phone according to an embodiment of the present invention;

FIG. 2 is a sectional view of a second-stage antenna.

FIG. 3 is a perspective view of a sliding button.

FIG. 4 is a cross-sectional view of a pressing piece that presses a retaining piece.

FIG. 5 is a sectional view showing a use state of the antenna.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cellular phone main body 2 Antenna 3 Large diameter part 4 Small diameter part 5 Stepped part 7 Cylindrical part 8 Spring 9 Head 10 Projection part 11 Column part 12 Fixed part 13 Tapered hook piece 14 Sliding button 15 Hanging piece 16 Spring 17 Button 18 Pressing piece 19 Hanging part 20 Opening part 21 Buffer material

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[Procedure amendment]

[Submission date] September 19, 2000 (2009.1.
9)

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Claims (2)

[Claims] 1. A large-diameter portion is formed at a rear end side from a substantially center in a longitudinal direction to a large-diameter portion, and a small-diameter portion is formed at a front end side of the large-diameter portion. An antenna consisting of a hollow columnar body having a stepped portion at the boundary,
A slide button that slides in the axial direction of the antenna by integrally forming a latch piece that hooks and unhangs on the stepped portion, a spring that slides the slide button, and a latch piece of the slide button A pressing piece formed on the mobile phone main body side to press and hook on the stepped portion side, a spring inserted in a large diameter portion of the antenna to automatically extend the antenna, and an extended antenna An automatic feed-out antenna comprising: an antenna exit portion of a mobile phone main body provided to abut a stepped portion to limit a feed-out amount. 2. The antenna having a stepped portion is referred to as a first-stage antenna, and a second-stage antenna is stored in the first-stage antenna so as to be able to be extended.
2. The automatic extension type antenna according to claim 1, further comprising a hook piece for hooking a rear end of the stage antenna to a tip of the first stage antenna.