KR20010111164A - Automatic retractable/extendable antenna system for portable radiotelephone - Google Patents

Abstract

The present invention relates to an automatic in / out antenna system of a terminal, the disclosed automatic in / out antenna system includes: a terminal having a rod antenna which is in / out according to an on hook or off hook mode, the terminal comprising: a drive motor; A deceleration module having a driving gear in one direction and controlling a rotation speed of the driving motor; A main bracket mounted to one end of the reduction module; A sub bracket provided in one direction of the main bracket and having at least one opening for in / out of the rod antenna; Located in the transverse direction in the sub-bracket and placed in the same axial direction as the rotation axis of the drive motor to receive the power of the drive motor directly, and to receive the power of the drive motor to provide a moving force of the rod antenna At least two drive roller assemblies facing each other; At least one or more positions that are spaced apart from each other by the drive roller assembly at a predetermined distance, and coaxially with the drive roller assembly, support one side of the rod antenna to stably provide a moving force of the rod antenna. Sub roller assembly; And a cushion bracket having a free end for restraining the sub roller assembly to the main bracket in the same direction as the rotation axis of the driving roller assembly and for elastically supporting the sub roller assembly.

Description

Auto-retract / retract antenna system of terminal {AUTOMATIC RETRACTABLE / EXTENDABLE ANTENNA SYSTEM FOR PORTABLE RADIOTELEPHONE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal having a rod antenna drawn in / out according to an on hook or off hook, and more particularly, to an antenna system for automatically introducing or drawing a rod antenna. It is about.

Typically, terminals are divided into bar-type, flip-type, and folder-type terminals. Such a terminal is essentially provided with a hook switch for mode switching to the on-hook or off-hook state. Thus, the user is in the on hook state or the off hook state depending on whether the hook switch is pressed.

On the other hand, among these terminals, the flip-type terminal is provided with a switch device that is in the on-hook state or off-hook state according to whether the flip is opened or closed, and also in the on-hook state or off-hook state in accordance with whether the folder is opened or closed by the clamshell terminal. A switch device is provided. Such a switch device is composed of a known magnet and a reed switch (or magnet switch). On the other hand, in consideration of the user's convenience, an automatic pull in / pull out antenna system has been developed to automatically draw or withdraw the rod antenna in accordance with the on-hook or off-hook state.

According to whether the flip is opened or closed, that is, the on-hook or off-hook state, the automatic pull-in / out antenna system in which the rod antenna is pulled in or pulled out is disclosed in Korean Patent Application No. 98-24444. Started. However, the automatic pull-in / out antenna system disclosed in the above-mentioned patent No. 98-24444 is composed of two rollers, which does not guarantee stable operation during load antenna pull-in / out, and the components constituting the automatic pull-in / out antenna system are excessive. As a result, assemblability deteriorates, and the space occupied by the main body is excessive, resulting in the miniaturization of the main body.

Accordingly, an object of the present invention is to provide an automatic pull in / out antenna system which can stably implement the pull in / out operation of a load antenna.

In order to achieve the above object, the present invention provides a terminal having a load antenna that is pulled in / out in accordance with the on-hook or off-hook mode,

Drive motors;

A deceleration module having a driving gear in one direction and controlling a rotation speed of the driving motor;

A main bracket mounted to one end of the reduction module;

A sub bracket provided in one direction of the main bracket and having at least one opening for in / out of the rod antenna;

Located in the transverse direction in the sub-bracket and placed in the same axial direction as the rotation axis of the drive motor to receive the power of the drive motor directly, and to receive the power of the drive motor to provide a moving force of the rod antenna At least two drive roller assemblies facing each other;

At least one or more positions that are spaced apart from each other by the drive roller assembly at a predetermined distance, and coaxially with the drive roller assembly, support one side of the rod antenna to stably provide a moving force of the rod antenna. Sub roller assembly; And

And a cushion bracket having a free end for restraining the sub roller assembly to the main bracket in the same direction as the rotation axis of the driving roller assembly and for elastically supporting the sub roller assembly.

1 is a perspective view showing a terminal in a general on-hook state.

2 is a perspective view showing a terminal in a general off-hook state.

Figure 3 is a plan view showing a state equipped with an automatic pull in / pull out antenna system according to the present invention.

Figure 4 is a perspective view showing the appearance of the automatic in / out antenna system according to the present invention.

Figure 5 is a plan view showing a configuration by cutting a portion of the automatic in / out antenna system according to the present invention.

6 is a perspective view showing a drive roller assembly of the automatic pull-in / out antenna system according to the first embodiment of the present invention;

7 is a perspective view showing a drive roller assembly of the automatic pull-in / out antenna system according to the second embodiment of the present invention.

8 is a perspective view showing a drive roller assembly of the automatic pull-in / pull-out antenna system according to a third embodiment of the present invention.

Figure 9 is a perspective view showing a drive roller assembly of the automatic pull in / pull out antenna system according to a fourth embodiment of the present invention.

10 is a perspective view showing a drive roller assembly of the automatic pull-in / out antenna system according to the fifth embodiment of the present invention;

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention; 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.

Typically, the on-hook terminal means a call standby mode in which the user cannot make a call, and the off-hook terminal means a call mode in which the user can make a call. In describing the automatic pull-in / out antenna system of the present invention, the automatic pull-in / out antenna apparatus draws the antenna, especially the rod antenna, into the main body in the on-hook state, and pulls the rod antenna out of the main body in the off-hook state. It means a system to make.

1 is a perspective view showing a terminal in a general on-hook state. 2 is a perspective view showing a terminal in a general off-hook state. An antenna device according to the present invention will be described by way of example applied to a flip terminal. However, it should be noted that the antenna device according to the present invention does not need to be limited to a flip type terminal, and can be equally applied to a bar type or a folder type terminal.

1 and 2, a typical flip-type terminal is a body 100, the flip 200 (filp), the main body 100 and the flip 200 by mechanically connecting the call And hinge means, not shown, to open and close to an angle (about 135 °). The hinge device, not shown, is embedded in the hinge accommodating part 103 of the main body 100. The flip 2000 is opened and closed from the main body 100 to the call angle around the hinge axis A.

The main body 100 inputs an antenna device 110, an ear piece 111 including a speaker (not shown), an LCD 112 on which input data is displayed, and data including various letters and numbers. And a plurality of keys 113 and a microphone device 114. In addition, the main body 100 is composed of an upper casing frame 101 and a lower casing frame 102.

The antenna device 110 is protected by the antenna housing 110b, and the rod antenna 110a performs the drawing operation or the drawing operation by the hook switch. As shown in FIG. 1, when the user ends the call and closes the flip 200 in the direction of arrow ①, the rod antenna 110a is drawn in the direction of arrow ②. As shown in FIG. 2, when the user opens the flip 200 in the direction of arrow ③ to make a call, the rod antenna 110a is drawn out in the direction of arrow ④. The pull in / out operation of the load antenna 110a is provided with the input / output by the automatic pull / draw antenna system according to the present invention.

As shown in FIG. 3, the automatic pull-in / out antenna system 300 according to the present invention is mounted in an accommodating part 104 located directly below the antenna housing 110b. The automatic in / out antenna system 300 according to the present invention is preferably mounted directly below the antenna housing 110b in order to effectively transmit power directly to the load antenna 110a performing the in / out operation. In addition, it is preferable that the automatic pull-in / out antenna system 300 according to the present invention be manufactured in one modular type in consideration of assemblability. The rod antenna 110a is moved in the directions of arrows ② and ④ by the power provided by the automatic in / out antenna system 300. The connector 312 connected to the driving motor 310 is connected to a main board (not shown), so that the automatic drawing / drawing antenna device 300 receives an incoming signal or a drawing signal by a command of a controller.

4 is a perspective view illustrating an automatic draw / draw antenna system 300 according to the present invention. 5 is a partial cutaway cross-sectional view showing the configuration of the automatic in / out antenna system 300 according to the present invention. 4 and 5, the automatic pull-in / out antenna system 300 according to the present invention includes a power source, a main bracket 330 fixed to the power source, and a sub bracket fixed to the main bracket 330. 340 and at least two drive roller assemblies 350 and 360 mounted on the sub bracket 340 to contact the rod antenna to transfer the pulling / drawing operation force, and are positioned to face the driving roller assemblies 350 and 360. The auxiliary roller assembly 370 assists the antenna in / out operation, and the cushion bracket 322 supporting the auxiliary roller assembly 370. Here, the sub roller assembly 370 is mounted at a distance slightly apart from each other between the first and second driving roller assemblies 350 and 360 facing each other. That is, the rotation shafts H2 and H3 of the first and second driving roller assemblies 350 and 360 and the rotation shaft H4 of the sub roller assembly 370 are located at vertices of an isosceles triangle, respectively. That is, the distance between the rotation shafts H2 and H4 and the distance between the rotation shafts H3 and H4 are equal. The limit of the rotation shaft position is for a stable operation of the rod antenna interposed between the first and second drive roller assemblies 350 and 360 and the sub roller assembly 370 to perform the drawing / drawing operation. That is, when the load antenna performs the pulling / drawing operation, there are three contact surfaces contacting the rod antenna.

However, the automatic in / out antenna apparatus according to the present invention faces each other with the first and second drive roller assemblies for a more stable rod antenna in / out operation, and the fourth in parallel with the third sub roller assembly 370. Additional mounting of the sub roller assembly and the fifth sub roller assembly is also possible. In addition, the present invention allows the additional mounting of the second and third sub roller assemblies on the basis of only one driving roller assembly.

The power source includes one drive motor 310 and a deceleration module 320 connected to the drive motor 310 to control the rotation speed of the motor. The main bracket 330 is fixedly integrated with the sub bracket 340. The sub-bracket 340 has openings 341 at both sides thereof for in / out operation of the rod antenna. The opening 341 is provided symmetrically and has a rectangular shape. The driving roller assembly includes a first driving roller assembly 350 and a second driving roller assembly 360 facing the first driving roller assembly 350. Each of the roller gears 352 and 362 provided in the first and second drive roller assemblies engages with the drive gear 322 exposed by the reduction module 320, respectively. Therefore, when the drive gear 322 rotates, the first and second drive roller assemblies 350 and 360 also perform a rotation operation. The cushion bracket 332 has a fixed end 332a and a free end 332b, and the fixed end 332a is fixed to the main bracket 330 located in the reduction module 320 by soldering, and the free end. End 332b supports and constrains auxiliary roller assembly 370 with tension.

According to the configuration as described above, when the drive gear 322 is rotated about the rotation axis H1 direction, the first drive roller assembly 350 rotates about the rotation axis H2 direction, the second drive roller assembly 360 ) Rotates about the rotation axis H3 direction. In addition, the sub roller assembly 370 in contact with the rod antenna performs a rotation operation about the rotation axis A4 direction.

FIG. 6 is a perspective view illustrating roller assemblies of an automatic draw / draw antenna system according to a first embodiment of the present invention; FIG. The roller assemblies refer to the first and second drive roller assemblies 350 and 360 and the sub roller assembly 370. The first and second drive roller assemblies 350 and 360 and the sub roller assembly 370 are elements that directly contact the outer circumferential surface of the rod antenna. For reference, the roller assemblies 350, 360, and 370 illustrated in FIG. 6 refer to the same components as the roller assemblies illustrated in FIGS. 4 and 5.

Referring to FIG. 6, the first driving roller assembly 350 includes a janggo roller 351 extending axially about the shaft S and a roller gear mounted to one side of the janggo roller 351. 352 and a belt 353 that tightly surrounds the outer circumferential surface of the django roller 351. Here, the django roller 351 refers to a roller of rubber material having a larger diameter size toward both sides, and a smaller diameter size toward the center. The django roller 351 is shown in FIG. 5. The second driving roller assembly 360 faces the first driving roller assembly 350 while maintaining a spaced distance from the first driving roller assembly 350. The second driving roller assembly 360 has a janggo roller 361 extending axially about the shaft (S), a roller gear 362 mounted to one side of the janggo roller 361, and the janggo And a belt 363 that tightly surrounds the outer circumferential surface of the mold roller 361. Django roller 362 of the second drive roller assembly is shown in FIG. The sub roller assembly 370 is composed of a high-density roller of a rubber material extending in the axial direction about the shaft (S). The django roller refers to a roller having a smaller diameter size toward the center 373 than the two sides 371 and 372. The sub roller assembly 370 maximizes the contact area when in contact with the rod antenna to maximize the friction area. Accordingly, the high rollers 351, 361 and 370 seek to complete the in / out operation of the rod antenna by minimizing the power loss transmitted from the driving motor.

When the driving motor is driven, the first and second driving roller assemblies 350 and 360 rotate, and then the sub roller assembly 370 rotates so that the rod antenna moves in the direction of arrow ② or arrow ④. In this case, the outer circumferential surface of the rod antenna is provided with a force moved by the frictional force generated by contact with the belts 353 and 363 and the sub roller assembly 370.

7 is a perspective view illustrating roller assemblies of an automatic draw / draw antenna system according to a second embodiment of the present invention. The roller assemblies consist of one drive roller assembly 380 and an auxiliary roller assembly 390 facing the drive roller assembly 380 at a predetermined distance. The driving roller assembly 380 may include a first roller 381 provided on the shaft S, a second roller 382 spaced apart from the first roller 381 by a predetermined distance, and the first and second parts. And a belt 383 provided tightly over the rollers 381 and 382 and roller gears 384 and 385 mounted on one side of each of the first and second rollers 381 and 382. The first and second rollers 381 and 382 refer to high-load rollers. In addition, the sub roller assembly 390 is composed of a high-density roller provided on the shaft (S). The django roller 390 is smaller in diameter from the side (391, 392) toward the middle (393). The material of the roller or the belt is most preferably a rubber material in consideration of the frictional force.

When the drive motor is driven, the drive roller assembly 380 rotates, and then the belt 383 rotates, and then the sub roller assembly 390, which is in contact with the rod antenna, also rotates to pull in or pull out the rod antenna. To provide.

8 is a perspective view illustrating roller assemblies of an automatic draw / draw antenna system according to a third embodiment of the present invention. The roller assemblies refer to the first and second drive roller assemblies 400 and 410 and the sub roller assembly 420. The first driving roller assembly 410 is a first roller 401 around the shaft (S), a roller gear 402 provided on one side of the first roller 401, and the first roller 401 It is composed of a belt 403 that tightly wraps the outer periphery. The second driving roller assembly 410 has a second roller 411 around the shaft S, a roller gear 412 provided on one side of the second roller 411, and the second roller 412. It is composed of a belt 413 that tightly wraps the outer periphery. The sub roller assembly 420 includes a sub roller 421 extending in the axial direction about the shaft S, and a belt 422 which tightly surrounds the sub roller 421. The first and second rollers 401 and 411 and the sub roller 421 are high-density rollers, and the belt 422 is made of rubber.

When the drive motor is driven, the first drive roller assembly 400 rotates, and simultaneously the second drive roller assembly 410 rotates, and then the sub roller assembly 420 in contact with the rod antenna rotates. This provides the force of the pulling in or pulling out of the rod antenna.

9 is a perspective view illustrating roller assemblies of an automatic draw / draw antenna system according to a fourth embodiment of the present invention. The roller assemblies refer to one drive roller assembly 430 and sub roller assembly 440. The driving roller assembly 430 may include a first roller 431, a second roller 432 spaced apart from the first roller 431 by a predetermined distance, and one end of each of the first and second rollers 431 and 432. And roller belts 433 and 434 respectively installed in the belt gears and belts 435 wrapped tightly between the first and second rollers 431 and 432. The first and second rollers 431 and 432 are high rollers. The sub roller assembly 440 includes a sub roller 441 provided on the shaft S, and a belt 442 that tightly surrounds the sub roller 441. The sub roller 441 is a high roller. In addition, the belt 442 is a rubber material.

As the drive motor rotates, the drive roller assembly 430 rotates, and the belt 435 rotates simultaneously, and then the sub roller assembly 440 which contacts the rod antenna rotates to draw or pull out the load antenna. To provide.

FIG. 10 is a perspective view illustrating roller assemblies of an automatic in / out antenna system according to a fifth embodiment of the present invention. FIG. The roller assemblies refer to the first and second drive roller assemblies 450 and 460 and the sub roller assembly 470. The first driving roller assembly 450 includes a first roller 451 around the shaft S, and a roller gear 452 mounted toward one end of the first roller 451. The second driving roller assembly 460 includes a second roller 461 around the shaft S, and a roller gear 462 mounted toward one end of the second roller 461. The first and second rollers 451 and 461 are long rollers. The sub roller assembly 470 includes a sub roller 471 provided in the axial direction about the shaft S, and a belt 472 that tightly surrounds the outer circumference of the sub roller 471. The sub roller 471 is a high-density type, the belt 472 is a rubber material.

When the driving motor is driven, the first drive roller assembly 450 rotates, the second drive roller assembly 460 rotates simultaneously, and the sub roller assembly 470 that contacts the rod antenna rotates. It provides the force of the pulling in and out of the rod antenna.

As a result, the automatic pull-in / out antenna system according to the present invention provides a sense of stability during the pull-in or pull-out operation of the rod antenna to improve the reliability of the product.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention. For example, in addition to the high rollers disclosed in the roller assembly according to the present invention, various types of rollers capable of maximizing the contact area are applicable, and the number of rollers in contact with the rod antenna need not be limited to three.

As described above, the automatic pull-in / out antenna system according to the present invention is applied to the terminal, thereby stably implementing the pull-in and pull-out operation of the load antenna to improve the reliability of the product.

Claims (6)

In the terminal having a load antenna that is pulled in / out in accordance with the on-hook or off-hook mode, Drive motors; A deceleration module having a driving gear in one direction and controlling a rotation speed of the driving motor; A main bracket mounted to one end of the reduction module; A sub bracket provided in one direction of the main bracket and having at least one opening for in / out of the rod antenna; Located in the transverse direction in the sub-bracket and placed in the same axial direction as the rotation axis of the drive motor to receive the power of the drive motor directly, and to receive the power of the drive motor to provide a moving force of the rod antenna At least two drive roller assemblies facing each other; At least one or more positions that are spaced apart from each other by the drive roller assembly at a predetermined distance, and coaxially with the drive roller assembly, support one side of the rod antenna to stably provide a moving force of the rod antenna. Sub roller assembly; And And a cushion bracket having a free end for constraining the sub roller assembly to the main bracket in the same direction as the axis of rotation of the drive roller assembly and for supporting the sub roller assembly elastically. The method of claim 1, wherein the drive roller assembly Django rollers; A roller gear provided at one end of the high roller; And a belt that tightly wraps the outer roller outer circumference to provide a moving force of the rod antenna. The sub roller assembly And an automatic draw / draw antenna system comprising a high roller for contacting and supporting the rod antenna. The method of claim 1, wherein the drive roller assembly A first long solid roller; A second solid roller installed at a position spaced apart from the first solid roller; Respective roller gears mounted to one end of the first and second rollers; And a belt installed to wrap tightly over the outer circumferential surface of the first and second long rollers, The sub roller assembly Automatic pull-in / pull-out antenna system consisting of a high-density roller for contacting and supporting the rod antenna. The method of claim 1, wherein the drive roller assembly Django rollers; A roller gear mounted to one end of the django roller; And a belt which tightly wraps the outer circumference of the django roller to provide a moving force of the rod antenna. The sub roller assembly Django rollers; And a belt that tightly wraps the outer roller outer circumferential surface to support the rod antenna. The method of claim 1, wherein the drive roller assembly A first long solid roller; A second solid roller installed at a position spaced apart from the first solid roller; Respective roller gears mounted to one end of the first and second rollers; And a belt installed to wrap tightly over the outer circumferential surface of the first and second long rollers, The sub roller assembly Django rollers; And a belt that tightly wraps the outer roller outer circumferential surface to support the rod antenna. The method of claim 1, wherein the drive roller assembly Django rollers; And a roller gear mounted at one end of the django roller, The sub roller assembly Django rollers; And a belt that tightly flashes the outer roller outer circumferential surface to support the rod antenna.