JP2003258518A - Antenna driving apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an antenna driving apparatus for suitably retracting or extracting an antenna of a small-sized apparatus such as a mobile communica tion terminal. <P>SOLUTION: The antenna driving apparatus 100 includes: a turning drive means 110 with a rotary shaft 112; a turning contact means 130 that is installed freely tiltably with respect to the turning axis 112 and feeds an antenna 10 in the length direction when the turning contact means is driven by a torque of the turning drive means while the turning contact means is in contact with an outer face of the antenna in crossing with the antenna 10; and an elastic coupling means that is placed between the turning drive means 110 and the turning contact means 130, delivers the torque of the turning drive means 110 to the turning contact means 130 and provides an elastic force to the turning contact means while permitting the turning contact means 130 to be driven in a tilted state with respect to the rotary axis 112. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna driving device, and more particularly to an antenna driving device suitable for inserting or withdrawing an antenna mounted on a small device such as a mobile communication terminal.

[0002]

2. Description of the Related Art Generally, mobile phones, PCS
sonal communication system: PCS), PDA (p
personal digital assistants: PDA), IMT-200
0 (international mobile telecommunication-2000: IMT
-2000) and other mobile communication terminals (mobile communicat
Generally, a load type antenna (rod
enna, hereinafter referred to as antenna). In consideration of call quality and efficient use of battery, it is recommended to use the method of pulling the antenna out of the housing when these devices are in operation, and pulling the antenna back into the housing after the call ends. desirable. In order to provide the convenience of pulling out or pulling in the antenna, the present inventor has proposed a driving device that automatically allows pulling out and pulling in the antenna (Korean Patent No. 288,128 and its corresponding patent). (See US Pat. No. 6,163,682).

However, according to the recent trend, not only the size of the mobile communication terminal becomes smaller but also the design of the mobile communication terminal becomes more profitable in order to satisfy the needs of various types of consumers. There is. The installation space of the antenna driver is reduced due to the size reduction of the terminal and the variety of the antenna design is diversified due to the trend of the terminal design, which makes the installation conditions of the antenna and the antenna driver difficult. ing.

In the conventional antenna driving apparatus, the force for pulling out or pulling in the antenna utilizes the frictional force between the rotating roller and the antenna that is circumscribed orthogonally to the roller. As a configuration for this, for example, a method of arranging the antennas so as to be orthogonal to each other between two rollers arranged side by side (the above conventional patent is based on this method), or one roller and a guide member A method of arranging the antenna so as to be orthogonal to the roller can be considered. Further, the roller is configured to connect the motor and the reduction gear assembly or the two elements connected to the motor to the output shaft of the integrated gear motor to rotate in the forward or reverse direction.

[0005]

According to this structure, the antenna which is circumscribed perpendicularly to the roller is forced to move linearly by the frictional force with the rotating roller and is pulled out or pulled in.
(That is, driving) is performed. At this time, an appropriate contact pressure between the antenna and the roller must be secured in order to ensure a smooth driving of the antenna. However, the conventional antenna driving device has a structure in which the roller is fixed to the output shaft of the gear assembly or the gear motor so that the rotation axis of the roller cannot be moved. Also, if the design of the terminal is changed, the installation position of the antenna driving device is changed or the diameter of the antenna is changed. For these reasons, in order to obtain a proper contact pressure between the roller of the antenna driving device and the antenna, an antenna driving device designed to fit the diameter of the antenna and the design of the mobile communication terminal should be used. is necessary. Such a limitation of the application range of one model eventually requires the development of a model and a replacement cycle of the antenna driving device, which leads to an increase in the production unit price. Not only that, even if the terminals have the same design, if the diameter of the antenna, the diameter of the roller, the roundness, the installation position of the antenna driving device, etc. are not accurate, the contact pressure between the driving device roller and the antenna Is too large or too small and the antenna cannot be driven smoothly. Therefore, there is a high possibility that the product will be defective.

The object of the present invention is to be widely applied to mobile communication terminals of various designs, especially antennas of various diameters, to provide a suitable contact pressure between the antenna and the roller, and the product driven by the antenna. An object of the present invention is to provide an antenna driving device having a structure capable of reducing defects.

[0007]

DISCLOSURE OF THE INVENTION An object of the present invention is to provide a rotary drive means having a rotary shaft, a rotary drive means installed so as to be tiltable with respect to the rotary shaft, intersecting with an antenna and in contact with the outer surface thereof. When it is rotated by the rotating force of the rotating contact means, it is installed between the rotating contact means for transferring the antenna in the longitudinal direction and the rotating driving means and the rotating contact means, and transmits the rotating force of the rotating drive means to the rotating contact means. This can be achieved by an antenna driving device characterized in that it includes elastic coupling means for providing elastic force to the rotary contact means while allowing the rotary contact means to be rotated in a state of being inclined with respect to the rotation axis.

In the elastic coupling means, the rotary force of the rotary drive means is transmitted to the rotary contact means so that the rotary contact means is rotated in a state of being inclined with respect to the rotary shaft. It is preferable that the tilt allow coupling means and the elastic force providing means for providing the elastic force to the rotary contact means are provided.

It is desirable that an antenna is provided between the rotary contact means and the antenna support means for supporting the antenna.

A gear motor is suitable as the rotation driving means.

The rotating shaft has an angled groove formed along one outer peripheral surface, and the elastic force providing means is disposed between the tilt allowing coupling means and the rotating contact means. The tilt permitting coupling means is in the shape of a container having a bottom and a side wall, and is formed by cutting out one side of the bottom and the side wall so that it can be coupled to the rotating shaft through the groove. Two or more tilt allowances that allow the rotary contact means to be inclined in either direction with respect to the axis of rotation so that the rotary contact means can be coupled to the incision groove and the side wall. The rotating contact means is formed to protrude outward from a coil spring receiving portion that receives one end of the coil spring, and is coupled to the tilt allowing portion. It is further preferable to include two or more protrusions, a roller shaft extending in the antenna direction, and an elastic roller coupled to the outer peripheral surface of the roller shaft and contacting the antenna.

A washer for reducing the frictional force acting on the tilt allowing coupling means may be further installed between the motor and the tilt allowing coupling means.

The rotation driving means is a gear motor, and the antenna supporting means is fixed to the gear motor and surrounds the rotary coupling means, the rotary contact means and the elastic force providing means so that the antenna can pass therethrough. The housing may have a hole to support the antenna with respect to the rotating contact means.

It is preferable that the antenna supporting means supports the antenna so that the two parts are in line contact or point contact.

It is desirable that the antenna support means is formed with a long hole into which the end of the rotary contact means is inserted.

The rotation driving means is a gear motor having a protrusion or a groove formed on one outer peripheral surface thereof, and the antenna supporting means has a groove or a protrusion which is rotatably coupled to the protrusion or the groove at a predetermined angle. The rotary contact means is provided rotatably at a predetermined angle on the gear motor, surrounds the rotary coupling means, the rotary contact means, and the elastic force providing means and is provided with a through hole through which the antenna is passed to protect the rotary contact means. Alternatively, the housing may be configured to support the antenna.

The antenna driving device according to the present invention having the above-mentioned structure can be used in a device for moving another wire member such as an antenna.

In this case as well, it is desirable that the wire member supporting means for supporting the wire member with the wire member provided between the rotary contact means is further included.

An object of the present invention is to provide a rotation driving means having a rotating shaft and an elastic body, which is installed on the rotating shaft and is elastically deformable so as to be inclined with respect to the rotating shaft. The present invention can also be achieved by an antenna driving device characterized in that it includes rotating contact means for moving the antenna while being contacted with the antenna and being rotated in this state.

Also in this case, it is preferable that the antenna further includes antenna supporting means for supporting the antenna by placing the antenna between the rotary contact means.

The features and advantages of the present invention other than those described above will be apparent from the following description of preferred embodiments of the present invention, which will be referred to next.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of an embodiment of an antenna driving device according to the present invention, FIG. 2 is an exploded perspective view of the antenna driving device of FIG. 1, and FIG. 3 is an antenna driving device of FIG. It is a partial cross-sectional view taken along the line I-I in the state.

As shown in FIGS. 1 to 3, the antenna driving apparatus 100 according to the present invention is installed in a mobile communication terminal to conveniently insert or pull out an antenna.
The rotary drive means 110 having a rotary shaft 112 is provided. A gear motor 110a may be used as the rotation driving means 110. The gear motor 110a includes a motor unit 111 and a gear assembly 116 for deceleration. Gear assembly 1
16 is a ring gear 116 fixedly installed in the motor unit 111.
a, a planetary gear 116b that is inscribed in the ring gear 116a and rotates while rotating, a carrier 116c that is rotated by the idler planetary gear 116b, and a sun gear that rotates the planetary gear 116b
It is composed of 116d etc. Since it is a common technology to reduce the driving speed of a motor by utilizing a ring gear, a planetary gear, a sun gear, a carrier, etc., the gear assembly 11
Detailed description of 6 is omitted. In addition, what is indicated by a chain double-dashed line in FIG. 3 is a state in which a connector for supplying power is installed.

As shown in FIGS. 1 to 3, the rotation driving means 110 of the present invention is a geared motor.
r, 110a) is preferably used directly, but other rotary drive means can be used as long as the rotary shaft can be rotated at an appropriate speed. For example, the driving device for driving the lid of the mobile communication terminal is the rotation driving means 110.
It can also be used jointly in.

As shown in FIGS. 2 and 3, a groove 113 is formed along the circumferential surface of the bottom of the rotary shaft 112 so that the rotary shaft at the bottom is angular. This groove 113, i.e. the angled bottom of the rotary shaft, enables the tilt-allowing coupling means 120, which will be explained later, to be connected.

The antenna driving device 100 according to the present invention comprises a rotary contact means 130. The rotary contact means 130 is rotated by the rotary drive means 11 with one side thereof being in contact with the antenna 10.
This is for pulling in or pulling out the antenna 10 while being rotated by the power of 0. The rotary contact means 130 is preferably arranged so as to be substantially orthogonal to the antenna 10, and the outer surface thereof is in contact with the outer surface of the antenna 10. Of course, the rotary contact means 130 does not have to be arranged so as to be orthogonal to the antenna 10. The rotary contact means 130 is installed so that it can be tilted at a predetermined angle with respect to the rotary shaft 112 by an external force, and when tilted, it is about to be restored to its original position by the elastic force providing means 140 such as a coil spring. Receive power.

A coil spring 140 is attached to the rotary contact means 130.
A coil spring receiver 132 is provided for receiving one end of a. The coil spring receiving portion 132 is formed in a container shape surrounded by a bottom and a side wall so that the upper end of the coil spring 140a is not separated.

A protrusion 133 is formed on the outer peripheral surface of the coil spring receiving portion 132 so as to protrude outward. It is desirable to install three protrusions 133 at 120 ° intervals, but in some cases, two protrusions 133 may be installed at 180 ° intervals. Of course, four or more protrusions 133 may be installed at intervals of other angles. The protrusion 133 is a portion to be coupled to the tilt allowing portion 122 of the tilt allowing coupling means 120 which will be described later.

The rotating contact means 130 comprises a roller shaft 134 integrally extending in the coil spring receiving portion 132 and having a length longer than the diameter of the antenna 10. The length direction of the roller shaft 134 is substantially orthogonal to the length direction of the antenna 10. A separation prevention jaw 135 is formed along the outer peripheral surface of the end portion of the roller shaft 134, and an elastic roller 136, which is in contact with the antenna 10, is coupled to the inside of the separation prevention jaw 135 of the roller shaft 134. In this case, the roller shaft 134 can be formed in a waist drum shape. Since the elastic roller 136 is introduced as a medium for providing a sufficient contact pressure between the rotating contact means 130 and the antenna 10, the roller shaft 134 is made of a material having a large frictional force with respect to the antenna 10. In this case, the elastic roller 136 may be omitted.

An inclination allowing coupling means 120 is installed between the rotation driving means 110 and the rotation contact means 130. The tilt permitting coupling means 120 transmits the rotational power of the rotary driving means 110 to the rotary contact means 130 so that the rotary contact means 130 can rotate, and the rotary contact means 130 tilts with respect to the rotary shaft 112. Allow to do. The tilt allowing coupling means 120 is in the shape of a container having a bottom 121 and a side wall 126. Inclination allowance coupling means 120 is rotating shaft 1
A cutting groove 124 is formed by cutting a part of the side wall 126 and the bottom 121 of the tilt allowing coupling means 120 so as to be able to be coupled to the rotating shaft 112 through the groove 113 formed in the groove 12. The incision groove 124 extends to the center of the bottom 121,
1 The end of the central cutting groove 124 is provided so as not to be disengaged from the rotating shaft 112 and to be firmly fastened to the groove 113 so as to receive the transmission of the rotational force. Also, the side wall 126 can be coupled with the rotary contact means 130, and in the coupled state, the rotary contact means 130 can be inclined in any direction with respect to the rotary shaft 112. Three allowances 122 are formed at 120 ° intervals. In some cases, the inclination allowances 122 are arranged at intervals of 180 °.
Two pieces may be formed, or four or more pieces may be formed at other angular intervals. This tilt permitting portion 122 is the rotary contact means 1 described above.
30 is a portion where the projection 133 is fitted, and is formed larger than the projection 133 so that the projection 133 can move in the fitted state, and the inlet 122a at the upper end is narrower than the projection 133 so that the projection 133 is not separated. Must be formed. Of course, the inlet 122a may be omitted if the protrusion 133 can be forcibly fitted to the inclination allowing portion 122.

The washer 1 is provided between the inclination allowing coupling means 120 and the rotation driving means 110, that is, the gear motor 110a.
50 are installed. This washer 150 is a gear motor 110a
It is intended to reduce the frictional force acting on the upper end portion of the tilt permitting coupling means 120 and is not absolutely necessary. Of course, the inclination allowing coupling means 120 may be formed integrally with the rotating shaft 112 depending on the case.

The connection method of the tilt permitting coupling means 120 and the rotary contact means 130 may be variously modified. For example, the inclination allowing coupling means 120 may be formed with a protrusion, and the rotary contact means 130 may be formed with an opening such as the inclination allowing portion 122 to be connected to each other. In addition, in some cases, instead of reducing the size of the tilt allowance coupling means 120, the coil spring receiving portion 132 of the rotary contact means 130 is made larger so that the tilt allowance coupling means 120 can be received inside. May be formed on the inside so that the protrusion 133 is fitted from the outside to the inside. At the same time, the tilt permitting coupling means 120 and the rotary contact means 130 are interlocked so that a rotational force can be transmitted between them via the male and female members, and at the same time the rotary contact means 130 elastically moves with respect to the rotary shaft 112. If it can be tilted, various modifications of the structure and coupling method of these two components 120 and 130 are possible.

The antenna driving device 100 according to the present invention includes elastic force providing means 140. As the elastic force providing means 140 in this embodiment, the inclination allowing coupling means 120 is used.
A coil spring 140a placed between the rotary contact means 130 and the rotary contact means 130 is suitable. The elastic force providing means 140 has a structure in which the diameter of the antenna 10 is larger than the standard size and
When the rotary contact means 130 contacted with is tilted at a predetermined angle with respect to the rotary shaft 112, the rotary contact means 130 is pushed toward the antenna 10 to ensure a sufficient frictional force between the rotary contact means 130 and the antenna 10. do.

Further, the coil spring 140a is not always required to be used in the elastic force providing means 140, and any kind of elastic spring can be used as long as it can provide the elastic force to the rotary contact means 130. Can also be used. For example, the elastic force providing means 140 may be composed of two magnets arranged so that the same polarities face each other between the rotary contact means 130 and the tilt allowing coupling means 120.

In this embodiment, the tilt allowing coupling means 120 and the elastic force providing means 140 enable the rotary contact means 130 to rotate in a tilted state, and at the same time the rotary contact means 130 pressurizes the antenna 10. An elastic force is provided so that the elastic coupling means 170 can be used.

The antenna driving device according to the present invention comprises antenna support means 160. The antenna support means 160 is for supporting the antenna 10 so that a frictional force necessary for driving the antenna 10 is generated between the antenna 10 and the rotary contact means 130. This antenna support means 160 is not always necessary. For example, the antenna 10 is made of a material having a very high rigidity and can resist the pressing force of the rotary contact means 130 without bending, or the movement path of the antenna 10 when it is installed in the case of a mobile communication terminal or the like. If the antenna is narrowly limited, then no additional antenna support means is needed.

Antenna support means 160 in this embodiment
The housing 160a is used as Housing 160a
Is coupled to the motor 110a and is the rotating contact means previously described
130, inclination permitting coupling means 120, elastic force providing means 14
It also plays a role of receiving 0 and protecting it internally. The housing 160a is formed with an antenna hole 162 through which the antenna 10 can pass and a long hole 164 into which the end of the roller shaft 134 of the rotary contact means 130 is inserted to be guided. A housing bracket 166 is coupled to the opening side of the bottom surface long hole 164 of the housing 160a.

As can be seen from FIG. 3, in the assembled state of the antenna driving device according to the present invention, the rotary contact means 130 is tilted by the external force exerted by the antenna 10, and the tilt allowing coupling means 12 is provided.
The antenna 10 is arranged so as to be inclined at a predetermined angle of 0, and in that state, is supported by the elastic force providing means 140 and presses one side of the antenna 10. The antenna 10 is supported in line contact or point contact with the antenna support means 160 at two portions near the inner edge of the antenna support means 160.

In the state shown in FIG. 3, when the rotary driving means 110 is supplied with power and the rotary shaft 112 rotates clockwise or counterclockwise, the tilt allowing coupling means 120 connected to the rotary shaft 112 rotates. The rotary contact means 130, which is interlocked with the tilt permitting portion 122 in the rotation direction through the protrusion 133, also rotates in a state of being tilted at a predetermined angle with respect to the rotary shaft 112.
When the rotary contact means 130 rotates, the antenna 10 linearly moves according to the rotation direction of the rotation shaft 112, and is inserted or withdrawn. Here, the contact force acting between the rotating contact means 130 and the antenna 10 varies depending on the spring constant of the coil spring used, the degree of compression thereof, the radius of the coil spring, and the like.

Antenna 10 with a slightly larger diameter in FIG.
When the rotary contact means 130 is assembled, the rotary contact means 130 becomes slightly inclined with respect to the rotary shaft 112, and
The pressing force exerted by the antenna on the antenna 10 becomes slightly larger. Of course, when the antenna 10 having a slightly smaller diameter is assembled, the rotary contact means 130 becomes slightly inclined with respect to the rotary shaft 112, and the rotary contact means 130 becomes the antenna 10.
The pressure applied to is slightly reduced. That is, when the antenna driving device according to the present invention is used, the diameter of the antenna or the installation position thereof may be slightly changed due to the design change of the mobile communication terminal, or even if there is some processing error of the antenna or the like, the rotary contact means. The force acting between 130 and the antenna 10 does not change suddenly. Therefore, the antenna driving device according to the present invention can be used regardless of the design type of the mobile communication terminal, the size variation of the antenna, etc., and can provide a driving condition suitable for any case. Therefore, the product defect rate associated with antenna drive will be significantly reduced.

FIG. 4 is a partially cutaway perspective view showing a connected state of a main part of the antenna driving device according to the present invention, and FIG. 5 is a partial view showing a connected state of the main part when the antenna is connected. It is a notch perspective view.

As can be seen in FIGS. 4 and 5, the rotary drive means 110
The tilt permitting coupling means 120 is coupled to the rotary shaft 112 of the tilting coupling means 120, and the rotary contact means 130 is tiltably coupled to the tilt permitting portion 122 of the tilt permitting coupling means 120 through the protrusion 133. And rotating contact means 130
An elastic force providing means 140 is coupled between the and. A housing 160a having an antenna hole 162 which serves as an antenna supporting means 160 is coupled to the rotation driving means 110. The housing 160a surrounds and protects the tilt allowing coupling means 120, the rotary contact means 130, and the elastic force providing means 140 to support the antenna 10, and guides the distal end of the rotary contact means 130 through the long hole 164.

As can be seen in FIG. 4, the rotating contact means 130 of the antenna driving device 100 according to the present invention is arranged on the same line as the rotating shaft 112 when the antenna 10 is not coupled to the rotating shaft 112.
It is not arranged to be tilted with respect to 112. However, Figure 5
When the antenna 10 is inserted and assembled in the antenna hole 162 as shown in FIG. 5, the rotary contact means 130 is pushed to one side by the antenna 10 and arranged so as to be inclined at a predetermined angle with respect to the rotary shaft 112. The rotating contact means 130 in the state of FIG. 5 receives the force of the elastic force providing means 140 to restore the same state as shown in FIG.

FIG. 6 is a perspective view showing a modification of the antenna driving device according to the present invention, and FIG. 7 is an exploded perspective view of the antenna driving device of FIG.

This modified example is different from the previous embodiment in the coupling method of the housing 160b to the motor 110a. Ie in the case of the previous embodiment the housing
The 160a is fixedly coupled to the body of the motor 110a and is not allowed to break. On the other hand, in this modified example, the housing 160b and the motor 110a are coupled in a manner that they can be bent at a predetermined angle. Specifically, Figure 6 and Figure 7
As shown in FIG. 5, a protrusion 119 is formed on the outer peripheral surface of one side of the gear motor 110a that constitutes the rotation driving means 110, and the housing 160b that constitutes the antenna supporting means 160 is connected to the protrusion 119 and the housing 160b is A groove 168 is formed so that the groove 168 can be rotated at a predetermined angle. The groove 168 has a scissor shape extending at the edge of the housing 160b so that the antenna supporting means 160 can be bent in the vertical direction (z direction) with respect to the motor 110a placed in the horizontal direction (y direction). The protrusion 119 and the groove 168 are formed by two
It is desirable to arrange them at 180 ° intervals. Further, it is desirable to further form a protrusion 169 between the two grooves 168 to limit a bending angle of the housing 160b or prevent the housing 160b from being separated from the motor 110a. With such a structure, the antenna supporting means 160 can rotate within a range of a predetermined angle with respect to the gear motor 110a. Of course, the protrusion 119 and the groove 168 may be formed by changing their positions.

The antenna driving device as shown in FIGS. 6 and 7 is difficult to be placed on the same line as the gear motor 110a due to an obstacle in the placement position of the housing 160b or the circumstances of the allowable installation space. If there is a real benefit. The alternate long and two short dashes line in FIG. 6 shows the rotating state of the housing 160b.

FIG. 8 is a sectional view showing another embodiment of the antenna driving device according to the present invention.

As shown in FIG. 8, the antenna driving device 100 according to the present invention includes the rotation driving means 110 having the rotation shaft 112. The rotation driving means 110 is a gear motor 110a.
Is the same as the previous embodiment.

The antenna driving device 100 according to the present invention is provided with a rotary contact means 130a which is installed so as to be tiltable with respect to the rotary shaft 112, contacts one side of the antenna, and rotates the rotary drive means 110 to move the antenna 10. It has.
An elastic body 170a, which will be described later, may be screwed to the rotary contact means 130a, and an elastic roller may be coupled to the outer peripheral surface thereof as in the previous embodiment.

An elastic body 170a is installed between the rotary drive means 110 and the rotary contact means 130a. The elastic body 170a transmits the rotary power of the rotary drive means 110 to the rotary contact means 130a and allows the rotary contact means 130a to be rotated with a predetermined angle inclined with respect to the rotary shaft 112 while allowing the rotary contact means to rotate.
It serves to provide elastic force to 130a. It is preferable that the elastic body 170a is made of rubber having excellent elasticity.

The elastic body 170a in this embodiment is an elastic coupling means that simultaneously fulfills the dual roles of the inclination allowing coupling means 120 and the elastic force providing means 140 in the previous embodiment.

The rest is the same as described above.

FIG. 9 is a sectional view showing another embodiment of the antenna driving device according to the present invention.

As shown in FIG. 9, in some cases, the rotary shaft 1
It is also possible to configure the present invention with the rotary drive means 110 having 12 and the rotary contact means 130b made of an elastic material.

The rotation driving means 110 here is the gear motor 1
10a, which is the same as described above.

The rotating contact means 130b is made of an elastic material such as rubber, except for the elastic roller on the outer peripheral surface, and is elastic so as to be inclined with respect to the rotating shaft 112 when directly installed on the rotating shaft 112. It may be configured to be deformable. Of course, in some cases, the rotary contact means 130b can be configured without installing an elastic roller on the outer peripheral surface of the rotary contact means 130b. That is, the rotary contact means 13 made of elastic material
At 0b, a part connected to the rotary shaft 12 serves as an elastic coupling means 170b, and the rotary contact means 130b is contacted with the antenna 10 in a state of being inclined with respect to the rotary shaft 112 and is rotated while moving the antenna 10. It can be moved.

The rotary contact means 130b in this embodiment is shown in FIG.
The inclination allowing coupling means 120, the elastic force providing means 140, and the rotary contact means 13 in the embodiment described with reference to FIGS.
Perform all 0 roles.

The rest is the same as described above.

[0060]

As can be seen from the above description, the antenna driving device according to the present invention can be used as a mobile communication terminal having various designs, and the antenna driving device can be newly installed whenever the design of the mobile communication terminal changes. Since it has to be developed, the cost of developing a new model terminal can be reduced.

Further, even if the diameter of the antenna, the diameter of the roller, the roundness, the installation position of the antenna driving device, etc. are not accurate, the contact pressure between the rotary contact means and the antenna becomes excessively large or excessively small. Therefore, the risk of product failure due to the driving of the antenna is very low, and the driving of the antenna is very smooth. That is, when the antenna driving device according to the present invention is used, a high quality mobile communication terminal can be manufactured.

Although the preferred embodiments of the present invention have been described above, those skilled in the art will be within the scope and spirit of the present invention as defined in the following claims. The present invention can be modified and changed in various ways. Therefore, it should be made clear that all equivalent meanings of the claims and all changes belonging to the scope of the claims are within the scope of the present invention.

[Brief description of drawings]

FIG. 1 is a perspective view showing an antenna driving device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the antenna driving device shown in FIG.

3 is a partial cross-sectional view taken along line I-I in a state where an antenna is coupled to the antenna driving device shown in FIG.

FIG. 4 is a partially cutaway perspective view showing a coupled state of main parts of the antenna driving device according to the embodiment of the present invention.

FIG. 5 is another partially cutaway perspective view showing a state where main parts of an antenna driving device according to an embodiment of the present invention are connected to an antenna.

FIG. 6 is a perspective view showing an antenna driving device according to a modification of the present invention.

FIG. 7 is an exploded perspective view showing the antenna driving device shown in FIG.

FIG. 8 is a sectional view showing an antenna driving device according to another embodiment of the present invention.

FIG. 9 is a sectional view showing an antenna driving device according to another embodiment of the present invention.

[Explanation of symbols]

10 antenna 100 antenna drive 110 rotation drive means 110a gear motor 112 rotation axis 113 groove 120 Inclined coupling means 121 bottom 122 Inclination allowance section 122a entrance 124 Incision groove 126 sidewall 130,130a, 130b Rotating contact means 132 Coil spring receiver 133 Protrusion 134 Roller shaft 136 Elastic roller 140 Elastic means 140a coil spring 150 washers 160 Antenna support means 160a, 160b housing 162 antenna hole 164 long hole 166 Housing bracket 170,170b Elastic coupling means 170a elastic body

Claims (15)

[Claims] 1. A rotary drive means having a rotary shaft, and the rotary drive means being installed so as to be tiltable with respect to the rotary shaft and being rotated by the rotary force of the rotary drive means in a state of intersecting the antenna and being in contact with the outer surface of the antenna. And a rotary contact means for moving the antenna in the longitudinal direction when it is moved, and a rotary force installed between the rotary drive means and the rotary contact means for transmitting the rotational force of the rotary drive means to the rotary contact means. An antenna driving device, comprising: an elastic coupling means that provides an elastic force to the rotary contact means while allowing the rotary contact means to be rotated while being inclined with respect to the rotation axis. 2. The elastic coupling means rotates so that the rotational force of the rotary drive means is transmitted to the rotary contact means so that the rotary contact means is inclined with respect to the rotary shaft. 2. An inclination permitting coupling means for permitting the operation and an elastic force providing means for providing an elastic force to the rotary contact means.
The antenna driving device according to. 3. The antenna driving device according to claim 1, further comprising an antenna support unit that supports the antenna by placing the antenna between the rotary contact unit and the rotary contact unit. 4. The antenna driving device according to claim 1, wherein the rotation driving means is a gear motor. 5. The rotating shaft comprises an angled groove formed along one outer peripheral surface, and the elastic force providing means is provided between the tilt allowing coupling means and the rotating contact means. A coil spring disposed, wherein the inclination allowing coupling means is in the shape of a container having a bottom and a side wall, and one side of the bottom and the side wall is cut in order to be coupled to the rotating shaft through the groove. Two or more that allow the rotary contact means to be tilted in any direction relative to the axis of rotation so that the incision groove formed and the side wall can be coupled to the rotary contact means. The rotary contact means includes a coil spring receiving portion that receives one end of the coil spring and an outer peripheral surface of the coil spring receiving portion. Two or more protrusions formed and coupled to the tilt permitting portion, a roller shaft extending in the antenna direction, and an elastic roller coupled to the outer peripheral surface of the roller shaft and contacting the antenna. The antenna drive device according to claim 2, wherein 6. The antenna as claimed in claim 5, further comprising a washer installed between the motor and the tilt allowance coupling means to reduce a frictional force acting on the tilt allowance coupling means. Drive. 7. The antenna, wherein the rotary driving means is a gear motor, and the antenna supporting means is fixed to the gear motor to surround and protect the rotary coupling means, the rotary contact means and the elastic force providing means. 4. A housing for supporting the antenna with respect to the rotary contact means, the housing having a through hole through which the antenna passes.
The antenna driving device according to. 8. The antenna supporting means includes the antenna.
8. The antenna drive device according to claim 7, wherein the two parts are supported so as to be in line contact or point contact. 9. The antenna driving device according to claim 7, wherein the antenna support means is formed with an elongated hole into which an end of the rotary contact means is inserted. 10. The rotation driving means is a gear motor having a protrusion or a groove formed on one outer peripheral surface thereof, and the antenna supporting means is a groove rotatably coupled to the protrusion or the groove at a predetermined angle. Alternatively, a through hole that is provided with a protrusion and is rotatably installed at a predetermined angle on the gear motor to surround and protect the rotary coupling means, the rotary contact means, and the elastic force providing means is provided. 4. The antenna drive device according to claim 3, further comprising a housing that supports the antenna with respect to the rotary contact means. 11. A rotary drive means having a rotary shaft, and the rotary drive means being installed so as to be tiltable with respect to the rotary shaft and being rotated by the rotary force of the rotary drive means in a state of intersecting the line member and being in contact with the outer surface thereof. If so, the rotary member is installed between the rotary contact means for transferring the wire member in the longitudinal direction and the rotary drive means and the rotary contact means, and the rotational force of the rotary drive means is transmitted to the rotary contact means. And a linear member driving device including elastic coupling means for providing elastic force to the rotary contact means while allowing the rotary contact means to be rotated in a state of being inclined with respect to the rotary shaft. . 12. The elastic coupling means mediates the rotational force of the rotary drive means to be transmitted to the rotary contact means, and the rotary contact means is rotated while being inclined with respect to the rotary shaft. 12. An inclination allowing coupling means for permitting the movement and an elastic force providing means for providing an elastic force to the rotary contact means are provided.
The wire member driving device according to item 1. 13. The wire member driving device according to claim 11, further comprising a supporting means for supporting the wire member by placing the wire member between the rotary contact means. 14. A rotation driving unit having a rotation shaft, and an elastic body, which is installed on the rotation shaft and elastically deformable so as to be inclined with respect to the rotation shaft. An antenna driving device, comprising: a rotating contact means for moving the antenna while being contacted with the antenna in an inclined state and being rotated. 15. The antenna driving device according to claim 14, further comprising an antenna supporting unit that supports the antenna by placing the antenna between the rotating contact unit.