KR100630158B1 - Automatic retractable/extendable antenna system - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs.

An automatic draw / draw antenna system.

I. The technical problem to be solved by the invention.

The present invention provides an automatic in / out antenna system that reduces the number of parts and implements in / out of a stable load antenna.

All. Summary of the Solution of the Invention.

A drive motor having a motor shaft and being a power source; A driving roller provided on the motor shaft to be in close contact with the rod antenna, the driving roller which pulls in or pulls out the rod antenna when the motor is driven; A driven roller which is installed while maintaining a spaced distance facing the driving roller, and keeps in close contact with the rod antenna to draw in or pull out the rod antenna; It is mounted on the main board facing the drive roller, and has an opening extending in the vertical direction to accommodate the driven roller for rotational movement, the shaft of the driven roller is located in the opening A bracket providing variability to the roller; And support means for providing variability to the drive motor in order to cope with vibrations or shocks generated in the drive motor or to keep in close contact with the load antenna during the load antenna pull-in or pull-out operation.

la. Important use of the invention.

Applicable to small terminals including antenna devices.

Cell phones, antennas, rollers, springs

Description

Automatic Draw-In / Out Antenna System {AUTOMATIC RETRACTABLE / EXTENDABLE ANTENNA SYSTEM}             

1 is a perspective view showing a mobile phone in the on-hook state.

2 is a perspective view showing a mobile phone in the off-hook state.

Figure 3 is a plan view showing a state in which the automatic in / out antenna system is installed in the casing frame according to an embodiment of the present invention.

Figure 4 is a side view showing a part of the cut-out state of the automatic in / out antenna system installed in the casing frame according to an embodiment of the present invention.

Figure 5 is an exploded perspective view showing the configuration of the automatic in / out antenna system according to an embodiment of the present invention.

Figure 6 is an assembled perspective view showing the configuration of the automatic pull out / pull out antenna system according to an embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone, and more particularly, to an automatic drawing / drawing antenna system for drawing or drawing a load antenna according to whether a flip is opened or closed.

Typically, a mobile phone includes a portable terminal such as a digital mobile phone, a cellular mobile phone, a PC phone, a handheld phone, and the like. Such a portable terminal enables a user to make a call while performing wireless communication with a base station.

According to the appearance of a general mobile phone, a bar type mobile phone is used as a first generation, a flip type mobile phone is popular as a second generation, and a folder type mobile phone is in the spotlight as a third generation. In the future, folder-type phones will become commonplace.

In such a mobile phone, in a flip type mobile phone, a device is provided for allowing a rod antenna to be drawn in or drawn out depending on whether the flip is opened or closed. Such a device is referred to as an auto in / out antenna system. When the flip is opened to make a call, the load antenna is drawn out, and when the call is terminated and the flip is closed, an automatic draw / draw antenna system for drawing the load antenna has already been filed by the present applicant.

The automatic draw / draw antenna system disclosed in Patent Application No. 98-24444 filed by the applicant (Samsung Electronics) has the following problems.

The conventional automatic pull-in / take-out antenna system requires too many parts and requires a lot of assembly work according to the number of parts, which in turn leads to a decrease in productivity and a rise in manufacturing cost.

In addition, the conventional automatic pull-in / out antenna system increases the number of defective parts due to excessive parts (usually, the increase rate of defective parts increases), making maintenance difficult, and the space occupied by the mobile phone main body becomes too large. It acted as a disadvantage in miniaturizing the main body.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an automatic pull-in / out antenna system capable of closely contacting a rod antenna and a pair of rollers.

Another object of the present invention is to provide an automatic pull-in / out antenna system capable of appropriately responding to external forces such as vibration or shock generated during rod antenna pull-in or pull-out operation.

Still another object of the present invention is to provide an automatic pull-in / out antenna system capable of reducing the number of parts, lowering the manufacturing cost, and improving assembling.

Still another object of the present invention is to provide an automatic in / out antenna system which is advantageous for miniaturizing a mobile phone body.

In order to achieve the above objects, the present invention includes a drive motor having a motor shaft, the drive motor;

A driving roller provided on the motor shaft to be in close contact with the rod antenna, the driving roller which pulls in or pulls out the rod antenna when the motor is driven;

A driven roller which is installed while maintaining a spaced distance facing the driving roller, and keeps in close contact with the rod antenna to draw in or pull out the rod antenna;                         

It is mounted on the main board facing the drive roller, and has an opening extending in the vertical direction to accommodate the driven roller for rotational movement, the shaft of the driven roller is located in the opening A bracket providing variability to the roller; And

When the rod antenna pull-in or pull-out operation, it is composed of a support means for providing variability to the drive motor to cope with vibration or shock generated in the drive motor or to maintain close contact with the load antenna.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention; In the drawings, it should be noted that like elements or parts represent the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

1 is a perspective view showing a mobile phone in an on hook state. 2 is a perspective view showing a mobile phone in an off hook state. The mobile phone shown in the figure is a flip-type radiotelephone. A typical flip type mobile phone is composed of a main body 100, a flip 200, and a hinge device (not shown) for mechanically connecting the main body and the flip. Accordingly, the flip 200 rotates about the rotation axis A0 to be opened and closed by the main body 100 to a call angle (about 135 degrees). The call angle of a typical flip phone is between about 135 degrees and about 160 degrees.

A typical on-hook cell phone refers to a call waiting mode in which a call cannot be made, and an off-hook cell phone refers to a call mode in which a call can be made. That is, the case where the flip element 200 is closed at the body 100 is called an on-hook state of the mobile phone, and the case where the flip 200 is opened to the call angle at the body 100 is an off hook of the mobile phone. It is called state.

The main body 100 has an antenna unit 110 at the top thereof, an earpiece 111 is positioned below the antenna unit, and an LCD unit 112 for displaying various information below the earpiece. LCD unit) is located. The keypad 113 includes a number key, a function key, a send key, an end key, a clear key, and the like on the LCD load side. The microphone unit 114 is positioned below the keypad.

The antenna device 110 is protected by the antenna housing 110b, and is composed of a conventional helical antenna and a rod antenna 110a. The rod antenna 110a is drawn out to improve reception sensitivity of radio waves in the main body, and is not shown because the helical antenna is built in the antenna housing 110b.

In this case, when the flip 200 is opened or closed about the hinge axis A0 in the main body 100, a device for introducing or extracting a rod antenna 110a (automatic drawing / drawing antenna system) may be provided. Automatic retractable / extendable antenna system).

As shown in FIGS. 3 and 4, the automatic in / out antenna system pulls the rod antenna 110a completely from the main body 100 when the flip 200 is opened, and the call is terminated when the flip 200 is terminated. When closed in the main body 100, the rod antenna 110a is in charge of a function of completely introducing the inside of the main body. This automatic in / out antenna system is mounted directly below the antenna housing 110b. In particular, the automatic in / out antenna system is mounted at a predetermined position of the lower casing frame 102 in which the antenna housing 110b is located.

The automatic in / out antenna system of the present invention refers to a device for introducing or drawing a rod antenna according to whether the flip 200 is opened or closed. That is, the load antenna 110a is automatically pulled out when the flip is open and is in the pull out mode, and when the flip mode is in the pull mode, the load antenna 110a is automatically pulled out. The input and output of the rod antenna 110a is due to the force provided by the pair of rollers 20 and 30. Moreover, the pair of rollers 20 and 30 are powered by the drive motor 10 as a power source.

In particular, the automatic pull-in / out antenna system of the present invention has a configuration in which the driving roller 20 is installed in the drive motor 10 and the driven roller 30 is housed in a bracket provided on the main board, among the pair of rollers. .

5 is an exploded perspective view showing the configuration of the automatic pull-in / pull-out antenna system according to an embodiment of the present invention. Figure 6 is an assembled perspective view showing an automatic pull in / pull out antenna system according to an embodiment of the present invention. Referring to the drawings, the configuration of the automatic in / out antenna system will be described in detail as follows.

The automatic pull-in / out antenna system of the present invention includes a motor shaft 11, a drive motor 10 for providing a power source, a drive roller 20 provided in the motor shaft of the drive motor, and the drive roller; An opposite driven roller 30, a bracket 40 mounted on the main board to support the driven roller, and support means for supporting the drive motor when the drive motor 10 is driven.

The drive motor 10 is a power source, and performs the rotational movement in the forward or reverse direction in the pull-in / pull-out mode. In addition, the motor shaft 11 is provided with a driving roller 20, the driving roller 20 is provided with a recess 22 which is smaller in diameter size toward the center 22 than both ends 21. . The recess 22 is to maximize the friction force with the tube of the rod antenna. Furthermore, the fastening part 15 is located symmetrically in the body of the drive motor 10, and the fastening part 15 has a fastening hole 15a. Fastening portion 15 of the present invention is located in four places. The fastening part 15 is positioned symmetrically to hold the position of the drive motor 10.

The driven roller 30 is smaller in diameter size toward the center 303 than the ends 302 around the shaft 301. That is, the driven roller 30 has a recess 303 in the middle portion thereof. The recess 303 is formed to maximize the friction force with the tube of the rod antenna.

At this time, the driven roller 30 is assembled in the position facing by the bracket 40 independent of the drive roller 20. The bracket 40 has an opening 41 at both ends, and the shaft 301 of the driven roller is located at the opening 41.

Therefore, the driven roller 30 has variability (movable in the vertical direction) along the opening 41 while maintaining a state of being in close contact with the rod antenna.

On the other hand, the support means to some extent in close contact with the rollers 20, 30 and the tube of the rod antenna and at the same time against external forces, including vibration generated in the drive motor during the rod antenna pull-in / pull-out operation Let's do it.

The support means is inserted into the fastening part 15 to be installed between the guide 50 for holding the position of the drive motor 10, and the fastening part 15 and the guide 50 are installed in the drive motor 10. ) And an elastic body 60 supporting the driving roller 20. The guide 50 is most preferably rod-shaped, the elastic body 60 is most preferably a compression coil spring.

By the compression coil spring 60, the drive motor 10 is variable up and down along the guide 50. In the drawing, the fastening part 15 is limited to four guides, but the guide 50 need not be limited to four, and may be provided symmetrically at least one pair.

As shown in FIG. 6, when the driving motor 10 enters or pulls out of the rod antenna to perform forward or reverse rotational movement about the rotational axis A1, the driving roller 20 also drives the driving motor 10. Rotate movement in the same direction (arrow ① direction), and the following driven roller 30 is rotated in the opposite direction (arrow ② direction), the rod antenna to the inlet or drawout movement (arrow ③ direction) do.,

If an external force generated by the rod antenna is generated while the rod antenna is pulled out or pulled out, the drive motor 10 can move in the direction of arrow ④ so that it can absorb vibration or shock. Furthermore, since the driven roller 30 can also move in the direction of the arrow ⑤, the driven roller 30 can confront the external force. The drive roller 20 and the driven roller 30 has a variable that can move up and down. The compression coil spring 60 absorbs vibration or shock generated in the rollers 20 and 30 by external force.

As a result, the automatic pull-in / out antenna system of the present invention has the variability of the pair of rollers 20 and 30 for pulling in or pulling out the rod antenna, respectively, so that it can appropriately counteract the external force, and the pair of roller and the rod antenna It is a configuration that can maintain a close contact state. Moreover, the recess provided in the drive roller and the driven roller maximizes the adhesion to the rod antenna.

In addition, the bracket mounted on the main board determines the distance to the driving roller so as to determine the shape or the mounting position.

The automatic in / out antenna system of the present invention need not be limited to a flip type mobile phone, but may be equally applicable to a bar type or a folder type mobile phone.

That is, in a bar-type mobile phone, a key for converting a mode to a separate on-hook or off-hook may be separately provided, and the automatic in / out antenna system of the present invention may be applied according to the operation of the key. .

In a folder-type mobile phone, an automatic mode change occurs in on-hook or off-hook depending on whether a folder is opened or closed, so that the same auto-in / out antenna system can be applied.

On the other hand, in the detailed description of the present invention has been described with respect to specific embodiments, it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

As described above, the automatic in / out antenna system of the present invention is reduced in the number of parts, thereby improving assembly performance or productivity, and appropriately responding to external forces generated during rod antenna in / out operation, which is advantageous for miniaturization of the main body. Effect was achieved.

Claims (3)

A drive motor having a motor shaft; A driving roller provided on the motor shaft; A driven roller which is installed to face the driving roller and maintains close contact with the rod antenna; A bracket mounted on a main board, facing the driving roller, having an opening extending in a vertical direction, wherein a shaft of the driven roller is positioned in the opening to provide variability to the driven roller; And At least one fastening portion symmetrically provided at a predetermined position on the outer periphery of the drive motor, at least one rod-shaped guide inserted into the fastening portion to hold the position of the drive motor, and installed between the fastening portion and the guide And the drive roller and the driven roller are composed of a coil spring providing a force for maintaining a close contact with the tube of the rod antenna, and responds to vibrations or shocks generated by the drive motor or maintains close contact with the rod antenna. And a support means for providing variability to the drive motor. delete The method of claim 1, In order to maximize the adhesion to the rod antenna, the drive roller and the driven roller is an automatic pull-in / pull-out antenna system, characterized in that the diameter size becomes smaller toward the center than both ends.

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