KR20100088487A - Mobile terminal - Google Patents

Abstract

PURPOSE: A mobile terminal is provided to configure an ejecting unit which ejects a stylus pen outside a terminal body, thereby improving convenience of a user. CONSTITUTION: A stylus pen(200) is detachably attached to the inside of a terminal body and fixed when one end of the stylus pen is exposed to the outside. An ejecting unit is mounted inside the terminal body. The ejecting unit includes a locking unit(320) and an elastic member(350). The locking unit fixes an end of the stylus pen. The elastic member provides an elastic force to the locking unit when the locking unit is unlocked.

Description

Mobile terminal {MOBILE TERMINAL}

The present invention relates to a mobile terminal detachably mounted with a stylus pen.

Terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal may be further classified into a handheld terminal and a vehicle mount terminal according to whether a user can directly carry it.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and increase the function of such a terminal, it may be considered to improve the structural part and / or the software part of the terminal.

Recently, as a terminal having a touch screen becomes more common, an auxiliary mechanism for inputting information through a touch screen, for example, a structure in which a stylus pen is directly mounted on the terminal is increasing.

In mounting such auxiliary devices to a terminal, a structure for allowing a user to more conveniently mount or detach the auxiliary devices from the terminal is required.

The present invention is to provide a new coupling structure of the stylus pen that can be conveniently attached and detached to the terminal.

The present invention for realizing the above object and the terminal body; A stylus pen detachably mounted inside the terminal body and fixed at an end thereof exposed to the outside; And a drawing unit mounted inside the terminal body and drawing out the stylus pen at a predetermined distance as the stylus pen is pressed. The drawing unit fixes the end of the stylus pen. A locking unit that is unlocked from the terminal body according to a pressing operation; And an elastic member for providing an elastic force to the locking part so that the locking part moves when the locking part is unlocked.

The withdrawal unit may further include a housing fixed to the inside of the terminal body and accommodating the locking portion such that the locking portion can be linearly moved.

The locking unit has an insertion hole into which the other end of the stylus pen is inserted, and a movable member mounted in the housing so as to be linearly movable; And a rotation member linearly moving in the housing according to the movement of the movable member, and rotating after a linear movement for a certain period to be caught or released from the housing.

A fixing part for fixing the stylus pen may be provided between the insertion hole and the stylus pen.

A first stopper may be formed to protrude from the outer circumferential surface of the rotating member, and a second stopper may be formed to protrude from the inner wall of the housing so that the first stopper is caught or released.

A first cam portion may be formed on the rotating member, and a second cam portion may be formed on the movable member to contact the first cam portion to rotate the first cam portion.

The mobile terminal may further include a support unit for supporting the stylus pen so that the stylus pen maintains the retracted position in the retracted state of the stylus pen.

Mobile terminal according to at least one embodiment of the present invention configured as described above improves the user's ease of use by configuring the withdrawal unit to be drawn out of the terminal body with the stylus pen is fixed.

In addition, the present invention implements a structure of drawing out or drawing out the stylus pen only by a pressing operation, thereby making the user's operability more convenient.

In addition, the present invention implements a more stable mounting structure of the stylus pen by having a support unit for keeping the stylus pen inserted.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other.

The mobile terminal described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, and an interface unit. 170, the controller 180, and the power supply 190 may be included. The components shown in FIG. 1 are not essential, so that a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast- (DVB-H). A digital broadcast signal may be received using a digital broadcast system such as handheld) or ISDB-T (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be configured to be suitable for not only the above-described digital broadcasting system but also other broadcasting systems.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives a wireless signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access and may be embedded or external to the mobile terminal 100. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The location information module 115 is a module for obtaining a location of a mobile terminal, and a representative example thereof is a GPS (Global Position System) module.

Referring to FIG. 1, the A / V input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by an image sensor in a video call mode or a photographing mode. The processed image frame may be displayed on the display unit 151.

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. Two or more cameras 121 may be provided according to the use environment.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data may be converted into a form transmittable to the mobile communication base station through the mobile communication module 112 and output in the call mode. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the user to control the operation of the terminal. The user input unit 130 may include a key pad, a dome switch, a touch pad (constant voltage / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. The sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154. Can be.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

The display unit 151 includes a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible). and at least one of a 3D display.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the implementation form of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another, or may be disposed integrally with one another, and may be disposed on different surfaces, respectively.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensing unit may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensing unit may be configured to convert a change in pressure applied to a specific portion of the display unit 151 or capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensing unit may be configured to detect not only the position and area of the touch but also the pressure at the touch.

If there is a touch input to the touch sensing unit, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

Examples of the proximity sensor include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. When the touch screen is capacitive, the touch screen is configured to detect the proximity of the pointer by the change of the electric field according to the proximity of the pointer. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects a proximity touch and a proximity touch pattern (eg, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). Information corresponding to the sensed proximity touch operation and proximity touch pattern may be output on the touch screen.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152, so that they 151 and 152 may be classified as part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or may be sequentially output.

In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through the jetting or suction port, grazing to the skin surface, contact of the electrode, electrostatic force, and the like. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. Two or more haptic modules 154 may be provided according to configuration aspects of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, optical disk. The mobile terminal 100 may operate in connection with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip that stores various types of information for authenticating the usage rights of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module ( Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Therefore, the identification device may be connected to the terminal 100 through a port.

When the mobile terminal 100 is connected to an external cradle, the interface unit 170 may be a passage through which power from the cradle is supplied to the mobile terminal 100, or various command signals input from the cradle by a user may be input to the mobile terminal. It can be a passage to be delivered. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted in the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

Various embodiments described herein may be implemented in a recording medium readable by a computer or similar device using, for example, software, hardware or a combination thereof.

According to a hardware implementation, embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein. Software code may be implemented in software applications written in a suitable programming language. The software code may be stored in the memory 160 and executed by the controller 180.

2A is a front perspective view of an example of a mobile terminal or a portable terminal according to the present invention.

The disclosed mobile terminal 100 has a terminal body in the form of a bar. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable.

The terminal body includes a casing (casing, housing, cover, etc.) forming an external appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. Various electronic components are built in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be further disposed between the front case 101 and the rear case 102.

The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the audio output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, and the interface 170 may be disposed in the terminal body, mainly the front case 101. have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on side surfaces of the front case 101 and the rear case 102.

The user input unit 130 is operated to receive a command for controlling the operation of the mobile terminal 100 and may include a plurality of operation units 131 and 132. The manipulation units 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user operates the tactile manner with a tactile feeling.

Content input by the first or second manipulation units 131 and 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

FIG. 2B is a rear perspective view of the mobile terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 ′ may be additionally mounted on the rear of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the camera 121 'photographs a general subject and does not transmit it immediately. It is desirable to have a high pixel because there are many. The cameras 121 and 121 'may be installed on the terminal body to be rotatable.

A flash 123 and a mirror 124 are further disposed adjacent to the camera 121 '. The flash 123 shines light toward the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to see his / her own face or the like when photographing (self-photographing) the user by using the camera 121 '.

The sound output unit 152 'may be further disposed on the rear surface of the terminal body. The sound output unit 152 ′ may implement a stereo function together with the sound output unit 152 (see FIG. 2A), and may be used to implement a speakerphone mode during a call.

In addition to the antenna for talking and the like, a broadcast signal reception antenna 116 may be additionally disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module 111 (see FIG. 1), can be installed to be able to be drawn out from the terminal body.

The terminal body is equipped with a power supply unit 190 for supplying power to the mobile terminal 100. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

The terminal body may be detachably coupled to the stylus pen 200 for inputting information by applying a touch to the touch screen. The stylus pen 200 is inserted into and fixed inside the terminal body with one end exposed to the outside. In addition, the stylus pen 200 may be drawn out of the terminal body and separated from the terminal body during use.

3 is an exploded perspective view of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 3, the stylus pen 200 is fixed in a space formed between the front case 101 and the rear case 102 as the stylus pen 200 is pushed in one direction (see FIG. 2A). A withdrawal unit 300 for drawing distance is mounted.

The stylus pen 200 may include an operation unit 201 having a pressing surface operable to push and an extension 202 extending from the operation unit 201.

The surface of the manipulation unit 201 may be coplanar with the surface of the terminal body in a state where the stylus pen 200 is inserted. In addition, an end portion of the extension part 202 may be sharply formed to facilitate input of touch information or may have a curved shape.

The stylus pen 200 is withdrawn from the terminal body with the end of the extension 202 fixed to the withdrawal unit 200 during the pressing operation.

FIG. 4 is an exploded perspective view of the drawing unit shown in FIG. 3, and FIGS. 5A and 5B are cross-sectional views of the drawing unit respectively illustrating a state in which the stylus pen is retracted and a state in which the stylus pen is retracted.

The withdrawal unit 300 includes a housing 310 fixed to the inside of the terminal body, a locking part 320 mounted to be locked or unlocked in the housing 310, and locking when the locking part 320 is unlocked. It may include an elastic member 350 to provide an elastic force to the portion 320.

The housing 310 has an inner space for accommodating the locking part 320 and the elastic member 350. The housing 310 may be formed in a cylinder shape having a through hole 311, and the locking part 320 is slidably mounted in the housing 310.

In the present embodiment, the housing 310 is described based on being formed separately from the terminal body, but the housing 310 may be formed integrally with the terminal body. That is, the housing 310 is not provided, it is also possible to form a structure for receiving the locking portion 320 in the terminal body itself.

The locking unit 320 fixes an end portion of the stylus pen 200, and is configured to be locked to the housing 310 or released from the housing 310 as the operation unit 201 of the stylus pen 200 is pressed.

The locking part 320 may include a movable member 330 and a rotating member 340 mounted in the housing 310 so as to be linearly movable, respectively.

The movable member 330 has an insertion hole 331 into which the stylus pen 200 is inserted. A fixing part 210 for fixing the stylus pen 200 is provided between the movable member 330 and the stylus pen 200. The fixing part 210 may include a fixing protrusion 211 formed on the inner wall of the insertion hole 331 and a fixing groove 212 formed on the outer circumferential surface of the stylus pen 200. The fixing protrusion 211 is formed to fit in the fixing groove 212, and thus the stylus pen 200 is fixed to the movable member 330. The fixing unit 210 may be implemented in any form as long as the stylus pen 200 can be detachably fixed to the movable member 330.

A locking jaw 330a is formed on an outer circumferential surface of the movable member 330. When the movable member 330 moves, the locking jaw 330a is caught by the housing 310 to restrict movement of the movable member 330.

The rotating member 340 linearly moves inside the housing 310 according to the movement of the movable member 330. The rotating member 340 is rotated after a certain period of linear movement and is mounted on the housing 310 to be caught or released by the housing 310.

The elastic member 350 provides an elastic force to the locking part 320 so that the locking part 320 moves in the withdrawal direction when the locking part 320 is unlocked. The elastic member 350 is implemented in the form of a compression spring, one end of the compression spring is supported by the support groove 340a formed in the rotating member, the other end is supported on the inner wall 102 'of the terminal body.

Referring to the operation of the drawing unit 300 briefly, the rotating member 340 is fixed to the housing 310 in a state where the stylus pen 200 is drawn as shown in FIG. 5A, and the elastic member 350 is compressed. Is in a state. When the user pushes the stylus pen 200 in this state, the movable member 330 and the rotating member 340 are linearly moved, and the rotating member 340 is rotated after a certain period of linear movement to move the housing 310. Is released from the.

When the rotating member 340 is released from the housing 310, as shown in FIG. 5B, the movable member 330 and the rotating member 340 are pulled out of the stylus pen 200 by the elastic restoring force of the elastic member 350. Will move. As the locking step 330a of the movable member 330 is caught by the end of the housing 310, the movement of the movable member 330 is limited.

One end of the stylus pen 200 is fixed to the movable member 330 even when the stylus pen 200 is drawn out, and the user may separate the stylus pen 200 from the movable member 330 to use the stylus pen 200.

Hereinafter, a detailed configuration of the housing 310, the movable member 330, and the rotating member 340 will be described.

6A is a perspective view showing the structure of the housing inner wall, and FIG. 6B is a perspective view showing the structure of the movable member.

A first stopper 341 is formed to protrude on the outer circumferential surface of the rotating member 340 (see FIG. 4), and the first stopper 341 is caught by the rotation of the rotating member 340 on the inner wall of the housing 310. Alternatively, the second stopper 311 is released.

The first stopper 331 may be formed in plural on the outer circumferential surface of the rotating member 340 at a predetermined interval. In the present embodiment, the three first stoppers 331 are formed at intervals of 120 degrees along the outer circumferential surface of the rotating member 340, but may be variously modified as well as such a configuration.

The first cam portion 342 is formed to be inclined on one surface of the first stopper 341 formed on the rotating member 340, and the first cam portion 342 is formed on the surface of the movable member 330 facing the rotating member 340. A second cam portion 332 is formed to correspond to the inclination of the. By the linear movement of the movable member 330, the second cam portion 332 is in contact with the first cam portion 342 to rotate the first cam portion 342.

The second stopper 311 may include a first slope 311a, a second slope 311b, and a locking wall 311c. The first stopper 331 is caught by the first inclined surface 311a and the locking wall 311c to fix the position of the rotating member 340. The first inclined surface 311a guides the first stopper 331 in the locking direction, and the second inclined surface 311b guides the first stopper 331 in the locking release direction.

The second stopper 311 may be formed in plural along the inner circumferential surface of the housing 310. The second stopper 311 has a number corresponding to the number of first stoppers 331. In the present embodiment, three second stoppers 311 are formed on the inner wall of the housing 310.

The first stopper 341 is inserted between the second stoppers 311 to form a first slot 312 that moves linearly. When the first stopper 341 is released from the second stopper 311, the first stopper 341 moves along the first slot 312.

A second slot 313 is formed on the second stopper 311, and a plurality of guide protrusions 333 linearly moving along the first and second slots 312 and 313 are formed on the outer circumferential surface of the movable member 330. The first slot 312 and the second slot 313 may be formed at equal intervals, and the guide protrusions 333 may be formed to correspond to the first and second slots 312 and 313. Here, the guide protrusion 333 has a protrusion height lower than the protrusion height of the first stopper 341.

7A to 7D are conceptual views of a drawing unit showing an operating state of the drawing unit. 7A and 7B, the configuration of the first stopper 341 of the movable member 330 and the rotating member 340 is shown by a solid line, and the configuration of the second stopper 311 is shown by a dotted line.

7A illustrates a state in which the stylus pen 200 is retracted into the terminal. The rotating member 340 is fixed to the housing by engaging the first stopper 341 with the first inclined surface 311a and the engaging wall 311c of the second stopper 311 while being supported by the elastic member 350. Is in a state of being.

When the stylus pen 200 is pressed, the movable member 330 and the rotating member 340 are linearly moved as shown in FIG. 7B. Here, the guide protrusions 333 of the movable member 330 are moved along the first and second slots 312 and 313 of the housing. In addition, the rotational member 340 is limited to the rotational movement as the first stopper 341 is restrained by the locking wall 311c, and only linear movement is performed.

When the movable member 330 and the rotating member 340 continue to move in a straight line, and the first stopper 341 is released from the restraint of the locking wall 311c, the rotating member 340 is first and second as shown in FIG. 7C. The cams 342 and 332 rotate in the R direction by the interaction of the cams 342 and 332.

In this process, the second inclined surface 311b of the second stopper 311 guides the rotational movement of the first stopper 341 in the R direction. The movable member 330 is linearly moved in the drawing direction by the rotating member 340.

When the first stopper 341 passes through the second inclined surface 311b of the second stopper 311, the first stopper 341 is positioned in the first slot 312, and is restrained by the second stopper 311. Will be released.

Accordingly, as shown in FIG. 7D, the movable member 330 and the rotating member 340 linearly move in the extraction direction by the elastic force of the elastic member 350. Here, the first stopper 341 moves linearly along the first slot 312, and the guide protrusion 333 moves along the first and second slots 312 and 313.

The retracting operation of the stylus pen 200 is performed in the reverse order to the above-described operation. When the stylus pen 200 is fixed to the movable member 330 and the stylus pen 200 is pressed, the movable member 330 and the rotating member 340 are linearly moved. Here, since the first stopper 341 is linearly moved along the first slot 312, the rotational movement of the rotating member 340 is limited.

When the rotating member 340 is released from the restraint by passing through the first slot 312, the rotating member 340 is rotated in the R direction by the interaction of the first and second cam parts 342 and 332, and the rotating member ( The first stopper 341 of 340 enters the first slope 311a of the second stopper 311. When the rotating member 340 continues the rotational movement, the first stopper 341 is caught by the first inclined surface 311a and the locking wall 311c, thereby restricting the movement, and thus the stylus pen 200 is fixed at the retracted position. Will be.

8 is a cross-sectional view of a withdrawal unit associated with another embodiment of the present invention.

The withdrawal unit 300 may further include a support unit supporting the stylus pen 200 to maintain the retracted position in the retracted state of the stylus pen 200.

According to the present embodiment, the support unit may be implemented in the form of a support spring 360 mounted between the inner wall surface of the housing 310 and the locking part 320. One end of the support spring 360 may be supported on the inner wall surface of the housing 310, and the other end thereof may be supported by the movable member 330. The support spring 360 provides the movable member 330 with an elastic force in a direction opposite to that of the elastic member 350, and the movable member 330 is moved in the withdrawal direction when the stylus pen 200 is withdrawn. It has an elastic force smaller than the elastic force which 350 has.

The support spring 360 presses the movable member 330 so that the movable member 330 maintains its position when the rotating member 340 is locked to the housing 310. Accordingly, the stylus pen 200 may be prevented from being randomly moved while the stylus pen 200 is inserted into the terminal body.

9 is a sectional view of a terminal body showing another embodiment of the support unit.

The withdrawal unit according to the present embodiment is the same as the configuration of the withdrawal unit described above, so the detailed description is replaced with the foregoing description.

The support unit according to the present embodiment is implemented in the form of a support ring 370 mounted between the terminal body and the stylus pen.

The support ring 370 is fixed to an insertion hole formed in the terminal body to insert the stylus pen 200, and is configured to contact the outer circumferential surface of the stylus pen 200 when the stylus pen 200 is retracted. The support ring 370 may have a deformable elastic material and support the stylus pen 200 to maintain its position in the retracted state of the stylus pen 200. Here, it is preferable that the friction force between the support ring 370 and the extension part 202 has a magnitude such that the stylus pen can be withdrawn when the stylus pen is withdrawn.

Meanwhile, an uneven portion may be formed at a portion in contact with the support ring 370 of the extension portion 202 of the stylus pen 200 to increase frictional force. In addition, the support unit may be implemented not only in the form of the support ring 370, but also in the form of the fitting portion that the outer peripheral surface of the extension portion 202 is fitted.

In the above description, the configuration for drawing in or drawing out the stylus pen has been described. However, the configuration of the drawing unit described above may be equally applicable to the configuration for drawing in or drawing out the antenna 116.

The above-described mobile terminal is not limited to the configuration and method of the above-described embodiments, but the embodiments may be configured by selectively combining all or some of the embodiments so that various modifications can be made. It may be.

1 is a block diagram of a mobile terminal associated with one embodiment of the present invention;

Figure 2a is a front perspective view of a mobile terminal according to an embodiment of the present invention.

2B is a rear perspective view of a mobile terminal according to an embodiment of the present invention.

3 is an exploded perspective view of a mobile terminal associated with one embodiment of the present invention;

Figure 4 is an exploded perspective view of the withdrawal unit shown in FIG.

5A and 5B are cross-sectional views of the withdrawal unit, respectively showing the retracted state and the retracted state of the stylus pen;

6A is a perspective view showing the structure of a housing inner wall;

6B is a perspective view showing the configuration of the movable member.

7A to 7D are conceptual views of a drawing unit showing an operating state of the drawing unit.

Figure 8 is a cross-sectional view of the withdrawal unit associated with another embodiment of the present invention.

9 is a sectional view of a terminal body showing another embodiment of the support unit.

Claims (16)

Terminal body; A stylus pen detachably mounted inside the terminal body and fixed at an end thereof exposed to the outside; And It is mounted inside the terminal body, and includes a withdrawal unit for withdrawing the stylus pen a predetermined distance as the stylus pen is pressed, The withdrawal unit, A locking part which fixes an end of the stylus pen and is unlocked from the terminal body as the stylus pen is pressed; And And a resilient member providing an elastic force to the locking unit so that the locking unit moves when the locking unit is unlocked. The method of claim 1, wherein the stylus pen, An operation unit formed with a pressing surface operable to press; And And an extension unit extending from the operation unit, one end of which is configured to enable input of information. The method of claim 2, And the surface of the operation unit is coplanar with the surface of the terminal body in a state where the stylus pen is retracted. The method of claim 1, wherein the withdrawal unit, And a housing fixed to the inside of the terminal body and accommodating the locking portion such that the locking portion can be linearly moved. The method of claim 4, wherein the locking unit, A movable member having an insertion hole into which the other end of the stylus pen is inserted, the movable member being mounted to be linearly movable in the housing; And And a rotating member which moves linearly in the housing according to the movement of the movable member, rotates after a linear movement for a predetermined period, and is locked or released to the housing. The method of claim 5, A fixing part for fixing the stylus pen is provided between the insertion hole and the stylus pen. The fixing part, A fixing protrusion protruding from an inner wall of the insertion hole; And A mobile terminal, which is formed on an outer circumferential surface of the stylus pen, and includes a fixing groove into which the fixing protrusion is fitted. The method of claim 5, The outer peripheral surface of the rotating member is formed to protrude a first stopper, The inner terminal of the housing is a mobile terminal, characterized in that the second stopper is formed so as to project the first stopper is caught or released. The method of claim 7, wherein The second stopper has a first inclined surface that guides the rotation of the first stopper in the locking direction and a second inclined surface that guides the rotation of the first stopper in the locking direction is formed. The method of claim 8, A mobile terminal, characterized in that between the first and the second inclined surface is formed a locking wall that is formed to catch the first stopper. The method of claim 7, wherein The second stopper is formed in plurality along the inner circumferential surface of the housing, And a first slot in which the first stopper moves linearly between the second stoppers. The method of claim 10, A second slot is formed on the second stopper; A mobile terminal, characterized in that the outer peripheral surface of the movable member is formed with a plurality of guide projections that linearly move along the first and second guide slots. The method of claim 5, The rotating member is formed with a first cam portion, and the movable member is a mobile terminal, characterized in that the second cam portion for contacting the first cam portion to rotate the first cam portion. The method of claim 5, And a support unit for supporting the stylus pen to maintain the retracted position in the retracted state of the stylus pen. The method of claim 13, wherein the support unit, And a support spring mounted between the inner wall surface of the housing and the locking portion and providing an elastic force in a direction opposite to the elastic member. The method of claim 14, The support spring is a mobile terminal, characterized in that it has a smaller elastic force than the spring for supporting the rotating member. The method of claim 13, wherein the support unit, And a support ring made of an elastic material mounted in an insertion hole formed in the terminal body to contact an outer circumferential surface of the stylus pen.

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