KR20080107791A - Hinge apparatus for portable terminal - Google Patents

Hinge apparatus for portable terminal Download PDF

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Publication number
KR20080107791A
KR20080107791A KR1020070056028A KR20070056028A KR20080107791A KR 20080107791 A KR20080107791 A KR 20080107791A KR 1020070056028 A KR1020070056028 A KR 1020070056028A KR 20070056028 A KR20070056028 A KR 20070056028A KR 20080107791 A KR20080107791 A KR 20080107791A
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KR
South Korea
Prior art keywords
hinge
housing
stopper
fastening piece
axis
Prior art date
Application number
KR1020070056028A
Other languages
Korean (ko)
Inventor
윤유석
정수익
Original Assignee
삼성전자주식회사
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Filing date
Publication date
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR1020070056028A priority Critical patent/KR20080107791A/en
Publication of KR20080107791A publication Critical patent/KR20080107791A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/021—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts using combined folding and rotation motions
    • H04M1/0212—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts using combined folding and rotation motions with a two degrees of freedom mechanism, i.e. folding around a first axis and rotating around a second axis perpendicular to the first
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/60—Application of doors, windows, wings or fittings thereof for other use
    • E05Y2900/606—Application of doors, windows, wings or fittings thereof for other use for electronic devices

Abstract

The present invention provides a first housing, a second housing rotatably coupled to the first housing in a foldable or distant direction, and first and second extending perpendicularly to each other while rotatably coupling the first and second housings. A portable terminal having a hinge device that provides a hinge axis, the hinge device comprising: a first hinge shaft fixed to the first housing along a direction of the first hinge axis; A second hinge shaft fixed to the second housing along the second hinge axis and rotating about the second hinge axis while pivoting about the first rotation axis; A first hinge arm installed in the first housing; A second hinge arm coupled to one end of the first hinge arm and rotating about the first hinge axis; And a fastening piece coupled to the second housing while the second hinge shaft penetrates, the second housing pivots with the second hinge arm about the first hinge shaft, and the second hinge shaft. Disclosed is a hinge device for a portable terminal that rotates together with the fastening piece. The hinge device of the portable terminal having the above configuration implements the convenience of bidirectional opening and closing of the housing to be suitable for using various services.

Description

HINGE APPARATUS FOR PORTABLE TERMINAL}

1 is a perspective view showing a portable terminal having a hinge device according to an embodiment of the present invention,

FIG. 2 is a perspective view illustrating a state in which housings of the portable terminal illustrated in FIG. 1 are folded;

3 is a perspective view illustrating a state in which a second housing of the portable terminal illustrated in FIG. 1 is rotated about a second hinge axis and opened;

4 is a perspective view illustrating a state in which the second housing of the portable terminal illustrated in FIG. 1 is rotated 90 degrees about the first and second hinge axes;

5 is a perspective view illustrating a state in which the second housing of the portable terminal illustrated in FIG. 4 is rotated 180 degrees about a second hinge axis;

6 is an exploded perspective view illustrating a hinge device of the portable terminal shown in FIG. 1;

7 is a perspective view showing a hinge device shown in FIG.

<Explanation of symbols for the main parts of the drawings>

101: first housing 102: second housing

200: hinge device 201: hinge housing

202: first hinge shaft 203: second hinge shaft

204: support 205: first hinge cam

206: second hinge cam 207: elastic member

208: fastening piece 209: ball bearing device

210: stopper member

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal, and more particularly, to a hinge device of a portable terminal which provides two different hinge axes by rotatably coupling a pair of housings.

Typically, portable terminals are classified into bar type, flip type, and folder type terminals according to the opening and closing method of the keypad.

The bar-type terminal is a type in which a data input / output device, a transmitter and a receiver are mounted in a main body housing, and a keypad, which is a data input device, is always exposed so that a malfunction may occur and a distance between the transmitter and the receiver is secured. Due to the problem, miniaturization is limited.

The flip type terminal is composed of a main body, a flip and a hinge module that connects the main body and the flip. A data input device, a song and a receiver are installed in the main body, and the flip covers the keypad, which is a data input device, to prevent malfunction. Can be. However, the flip type terminal also has a limitation in miniaturization due to the problem of securing the distance between the transmitter and the receiver.

The folder type terminal is composed of a main body, a folder, and a hinge module for rotatably connecting the main body and the folder so that the folder is opened and closed by rotating the folder. In the call mode, the folder is opened to secure a sufficient distance between the transmitter and the receiver, which is advantageous in miniaturization. For this reason, the clamshell terminal occupies a large part of the portable terminal market.

Meanwhile, as functions provided by the portable terminal and user's tastes are diversified, the portable terminal is not only a conventional opening and closing method but also a sliding terminal in which a pair of housings are slidably movable, and one housing is rotatable on another housing. Swing-type terminals and the like are connected. In particular, the sliding terminal is a trend that is gradually becoming a more common portable terminal than the folding terminal.

However, the conventional portable terminal sets the display device vertically long so as to be suitable for performing communication functions such as voice call and message transmission. For this reason, there is a disadvantage in that it is inconvenient to use multimedia services such as digital multimedia broadcasting (DMB), video files, etc., which are frequently provided recently, as portable terminals.

In order to solve the above problems, it is an object of the present invention to provide a hinge device of a portable terminal suitable for the use of multimedia services in addition to performing a communication function.

Another object of the present invention to provide a hinge device of a portable terminal to open and close the housing in both directions to improve the convenience of use.

In order to achieve the above object, the present invention, while rotatably coupling the first housing, the second housing and the first housing, the second housing rotatably coupled to the first housing, the direction folded or away from each other, In the portable terminal having a hinge device for providing a vertically extending first and second hinge axis, the hinge device,

A first hinge shaft fixed to the first housing along the first hinge axis direction;

A second hinge shaft fixed to the second housing along the second hinge axis and rotating about the second hinge axis while pivoting about the first rotation axis;

A first hinge arm installed in the first housing;

A second hinge arm coupled to one end of the first hinge arm and rotating about the first hinge axis; And

And a fastening piece coupled to the second housing while the second hinge shaft is penetrated,

The second housing further rotates with the second hinge arm about the first hinge shaft, and discloses a hinge device of a portable terminal that rotates together with the fastening piece about the second hinge shaft.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a perspective view showing a portable terminal 100 having a hinge device 200 according to a preferred embodiment of the present invention, Figure 2 is a housing 101, 102 of the portable terminal 100 shown in FIG. 3 is a perspective view illustrating a folded state, and FIG. 3 is a perspective view illustrating a state in which the second housing 102 of the portable terminal 100 illustrated in FIG. 1 is rotated about the second hinge axis A1 and opened. 4 is a perspective view illustrating a state in which the second housing 102 of the portable terminal 100 illustrated in FIG. 1 is rotated 90 degrees about the first and second hinge axes A1 and A2, and FIG. 5 is FIG. 4. 2 is a perspective view illustrating a state in which the second housing 102 of the portable terminal 100 is rotated 180 degrees about the second hinge axis A2. 1 to 5, the portable terminal 100 including the hinge device 200 according to the preferred embodiment of the present invention includes a first housing 101 and a second housing 102. The second housing 102 may be rotated about the first and second hinge axes A1 and A2 extending perpendicular to each other. In this case, the second housing 102 can be rotated around the hinge axis of any one selected from the first, second hinge axis (A1, A2) in the folded state to the first housing (101). In addition, when the second housing 102 rotates about one of the first and second hinge axes A1 and A2, the second housing 102 rotates about the other one of the first and second hinge axes A1 and A2. It is possible to pivot on the hinge axis. On the other hand, the second housing 102 is intended to maintain the open state at a specific angle by the hinge device 200. As a result, the second housing 102 rotates about one of the first and second hinge axes A1 and A2 and rotates about the hinge axis. , A2) is centered on the other hinge axis. Specifically, when the second housing 102 rotates about the first rotational axis A1 and is opened by 90 degrees, the second housing 102 is rotatable about the second hinge axis A2 and the second rotational axis A2. When rotated about 90 degrees and opened by 90 degrees, it can rotate about the said 1st hinge axis A1.

The first housing 101 is a main body accommodating a main board, a battery pack, and the like, and a keypad 111 and a transmitter 113 are installed on one surface of the second housing 102. It is opened and closed by).

The keypad 111 is composed of keys in a qwerty arrangement on one surface of the first housing 101 and is used for telephone number input, short message transmission, and wireless Internet search. A signal value assigned to each of the keypads 111 is printed on one surface of the keypad 111. When the second housing 102 is rotated around the first hinge axis A1, a telephone number for a voice call is easily provided. A number is printed in a direction that can be easily input, and when the second housing 102 rotates the second hinge shaft A2 in a direction that can easily input text for wireless Internet search. Characters are printed. Therefore, when the keypad 111 is pressed, input of numbers, letters, and the like is performed. The talker 113 has a built-in microphone and is installed adjacent to the keypad 111, and a user's voice for transmitting to the other party is input to the talker 113.

A first hinge arm 115 extending in the direction of the first hinge axis A1 is formed at an upper end of the first housing 101 to be coupled to the second housing 102. The first hinge arm 115 is formed only at a portion of the width of the first housing 101, and the remaining portion of the first hinge arm 115 provides a space for installing the second hinge arm 125.

The second housing 102 has a main display 121 and a receiver 123 on one surface thereof, and a sub display 127, a sub keypad 128, and a camera lens 129 disposed on the other surface thereof. The second hinge arm 125 is coupled.

The main display 121 is installed on one surface of the second housing 102 to face one surface of the first housing 101, and includes a liquid crystal display (LCD) or a thin film transistor (TFT). It is composed of various types of display elements such as data transmission and reception information, the value input by the operation of the keypad, and display the video content. As the second housing 102 rotates away from the first housing 101 about an arbitrary hinge axis among the first and second hinge axes A1 and A2, the main display 121 gradually increases. Exposed to the outside.

The sign language unit 123 is installed adjacent to both sides of the main display 121, and the speaker phone has a built-in speaker to output the received voice or the sound of the stored video and music files to the portable terminal 100. In particular, while the second housing 102 is rotated about the second hinge axis A2 to open the main display 121, the sign language unit 123 may be configured to include the stored video and music files. Round sound can also be output. In addition, as the receiver 123 is combined with the talker 113, the user may make a voice call with the other party using the portable terminal 100.

The sub display 127 is installed on the other surface of the second housing 102 and is always exposed to the outside. The sub display 127 is a display device of various forms such as an LCD (liquid crystal display) or a thin film transistor (TFT). It is configured to display the status information of the portable terminal 100, the content information being reproduced, and the like. In addition, since the sub display 127 is always exposed to the outside, the sub display 127 may be used regardless of the open / closed state of the portable terminal 100.

The sub keypad 128 is provided adjacent to the sub display 127 and is composed of play / stop and search buttons. For this reason, the sub keypad 128 is used to play and search the moving image and the music file even when the first and second housings 101 and 102 are folded together in combination with the sub display 127.

The camera lens 129 is installed adjacent to the sub display 127 to display a photographed image of a subject through the main display 121 and the sub display 127. In the state where the first and second housings 101 and 102 are folded, the camera lens 129 and the sub display 127 are adjacent to each other, so that the user can photograph themselves while checking the sub display 127. Can be. On the other hand, while the first housing 101 is opened, the user can check the captured image of the subject through the main display 121 while photographing through the camera lens 129. Therefore, the camera lens 129 is always exposed and can be used for various purposes.

One end of the second hinge arm 125 is coupled to face one end of the first hinge arm 115, and rotates about the first hinge axis A1. Therefore, the second housing 102 rotates about the first hinge axis A1 together with the second hinge arm 125. In addition, when the second housing 102 is coupled to the second hinge arm 125, the second housing 102 is rotatably coupled around the second hinge axis A2. As a result, the second housing 102 rotates about the first hinge axis A1 together with the second hinge arm 125 from the state in which the second housing 102 is folded on the first housing 101, or the second hinge. It rotates about the said 2nd hinge arm 125 about the axis A2.

Specifically, in the state in which the second housing 102 is rotated about the first hinge axis A1 and opened, the portable terminal 100 is the same as a conventional folding terminal and moves normally to a user. It provides convenience of use of communication function and game. In addition, while the second housing 102 is rotated and opened about the second hinge axis A2, the portable terminal 100 provides a long screen in a horizontal direction to provide multimedia to a user such as watching a broadcast. Provides the convenience of using the service.

FIG. 6 is an exploded perspective view illustrating the hinge device 200 of the portable terminal 100 illustrated in FIG. 1, and FIG. 7 is a combined perspective view illustrating the hinge device 200 illustrated in FIG. 6. As shown in FIG. 6 and FIG. 7, the hinge device 200 of the portable terminal 100 according to the preferred embodiment of the present invention is connected to the first housing 101 along the direction of the first hinge axis A1. The first hinge shaft 202 is mounted, and the second hinge shaft 203 is mounted to the second housing 102 along the second hinge axis A2. In addition, the second hinge shaft 203 pivots about the first hinge shaft A1 together with the second housing 102.

The hinge device 200 includes a hinge housing 201 to form a single module including the first and second hinge shafts 202 and 203. The hinge housing 201 extends in the direction of the first hinge axis A1 and is accommodated in the second hinge arm 125 so that the hinge housing 201 may be connected to the first hinge axis A1 together with the second hinge arm 125. It will rotate to the center. In addition, the hinge housing 201 receives and couples the first hinge shaft 202, and fixes the second hinge shaft 203. In this case, the first and second hinge shafts 203 are disposed perpendicular to each other with the first hinge shaft 202 by the hinge housing 201. In addition, the hinge housing 201 includes a first stopper protrusion 211, a first coupling hole 213, and a second coupling hole 215.

The first stopper protrusion 211 is formed on an outer circumferential surface of one end of the hinge housing 201 and used to limit the range of rotation of the second housing 102 with respect to the first rotational axis A1. The first coupling hole 213 is formed through the hinge housing 201. When the shaft protrusion 221 protruding along the outer circumferential surface of one end of the first hinge shaft 202 is accommodated in the first coupling hole 213, the first hinge shaft 202 is connected to the hinge housing 201. Are accepted. The second coupling hole 215 is formed at one side of the hinge housing 201, and one end of the second hinge shaft 203 is inserted into and coupled to the second coupling hole 215. In this case, at least one planar engagement contact portion 233 is formed on an outer circumferential surface of one end of the second hinge shaft 203, and an inner surface of the second coupling hole 215 corresponds to the second hinge shaft ( 203 is fixed to the hinge housing 201 by the second coupling groove 215.

In addition, the first hinge shaft 202 is disposed in the hinge housing 201 by sequentially placing the elastic member 207, the second hinge cam 206, and the first hinge cam 205. At this time, the support 204 for closing one end surface of the hinge housing 201 is provided. The support 204 is coupled to the hinge housing 201 while fixing the first hinge arm 205. In this case, the hinge housing 201 and the first and second hinge cams 205 and 206 disposed on the first hinge shaft 202 and the first hinge shaft 202 by the support 204 and The state in which the elastic member 207 is accommodated is maintained. In addition, the support 204 includes a first stopper rib 241 and a fixing protrusion 243.

The first stopper rib 241 protrudes from one end surface of the support 204. When the second housing 102 rotates about the first hinge axis A1 together with the second hinge arm 125 while the support 204 is coupled to the hinge housing 201, The hinge housing 201 rotates about the first hinge axis A1. At this time, the first stopper protrusion 211 of the hinge housing 201 interferes with the first stopper rib 241 of the support 204. Thus, the second housing 102 is limited to the rotation range around the first hinge axis A1.

The fixing protrusion 243 protrudes to one end surface of the support 204 and is coupled to the first hinge cam 205. In addition, at least one plane is formed on an outer circumferential surface of the fixing protrusion 243, and the fixing protrusion 243 fixes the first hinge cam 205 to the support 204. In other words, the first hinge cam 205 is fixed to the first housing 101, specifically the first hinge arm 115 by the fixing protrusion 243.

The first and second hinge cams 205 and 206 and the elastic member 207 accommodated in the hinge housing 201 rotate the second housing 102 about the first hinge axis A1. Friction force to stabilize the driving force and stationary state is provided.

The first hinge cam 205 is fixed to the fixing protrusion 243 formed on the support 204, a pair of the first ridges 251 and the first valleys 253 on one surface thereof in the circumferential direction Alternately formed along.

The second hinge cam 206 is guided by guide protrusions 265 formed on an outer circumferential surface thereof so that only the linear motion is installed in the hinge housing 201, and the elastic member 207 is the hinge housing 201. It is accommodated in the) to provide an elastic force in the direction in which the second hinge cam 206 is in close contact with the first hinge cam 205. Therefore, when the hinge housing 201 rotates, the second hinge cam 206 also rotates with respect to the first hinge axis A1 to rub against the first hinge cam 205.

In the second hinge cam 206, a pair of second peaks 261 and second valleys 263 are alternately formed along the circumferential direction. Therefore, when the second hinge cam 206 is brought into close contact with the first hinge cam 205 by receiving the elastic force of the elastic member 207, the second mountain parts 261 and the first valley part 253 are provided. The second hinge cam 206 rotates with respect to the first hinge cam 205 in the direction in which they engage each other. That is, the elastic force of the elastic member 207 acts as a driving force for rotating the second hinge cam 206, and ultimately the hinge housing 201 and the second housing 102.

The second hinge shaft 203 is coupled to the hinge housing 201 and disposed perpendicularly to the first hinge shaft 202 to rotate about the second hinge axis A2 of the second housing 102. To provide. In addition, the second hinge shaft 203 includes the coupling contact portion 231, the coupling protrusion 233, and the stopper coupling portion 235.

The engagement contact portion 231 is formed in at least one plane on the outer circumferential surface of one end of the second hinge shaft 203 and is inserted into the second coupling hole 215 to move the second hinge shaft 203 to the hinge housing. It is kept fixed to 201.

The coupling protrusion 233 protrudes along the outer circumferential surface of the other end of the second hinge shaft 203, and two or more stopper grooves 233a are formed along the outer circumferential surface at regular intervals. The stopper coupling part 235 protrudes from the other end surface of the second hinge shaft 203, and at least one plane is formed on an outer circumferential surface thereof.

The second hinge shaft 203 fixed to the hinge housing 201 is coupled to the fastening piece 208. The fastening piece 208 is coupled to the second housing 102 while the second hinge shaft 203 is penetrated. In addition, the fastening piece 208 includes a through hole 281, a second stopper protrusion 283, and a housing coupling part 285.

The through hole 281 is formed to penetrate from one side to the other side of the fastening piece 208, so that the second hinge shaft 102 is coupled to the fastening piece 208 through the through hole 281. do. In this case, the coupling protrusion 233 is inserted from one side of the fastening piece 208 to the other side through the through hole 281 and is accommodated in the fastening piece 208. The stopper coupling part 235 protrudes from the other side of the fastening piece 208 while the coupling protrusion 233 is accommodated in the fastening piece 208. That is, the through hole 281 accommodates the coupling protrusion 235, and the stopper coupling portion 235 is exposed to the other side of the fastening piece 208.

The second stopper protrusion 283 is formed to protrude adjacent to the through hole 281 on the other side of the fastening piece 208. When the second hinge shaft 203 is coupled to the fastening piece 208, the stopper coupling portion 235 is adjacent to the second stopper protrusion 283.

The housing coupling part 285 extends from the outer circumferential surface of the fastening piece 208 in the direction of the first hinge axis A1 and is coupled to the second housing 102. That is, as the housing coupling part 285 is coupled to the second housing 102, the fastening piece 208 is coupled to the second housing 102. Thus, when the second housing 102 rotates about the second hinge shaft 102, the fastening piece 208 also rotates together.

The ball bearing device 209 is installed adjacent to the fastening piece 208, specifically, the housing coupling part 285. The ball bearing device 209 is engaged with any one of the stopper grooves 233a when the fastening piece 208 is rotated about the second hinge shaft 203 so that the fastening piece 208 is formed. ) Is stopped on the second hinge shaft 203. Thus, the second housing 102 is stationary on the second hinge shaft 203. In addition, the ball bearing device 209 includes a ball 291, a fastening elastic member 293, a support piece 295, and a support 297.

The ball 291 engages with the stopper groove 233a to stop the fastening piece 208 on the second hinge shaft 203. In the state where the second housing 102 is folded to the first housing 101, the ball 291 is engaged with any one of the stopper grooves 233a so that the second housing 102 is connected to the first housing 101. The folded state of the housing 101 is maintained. In addition, when the second housing 102 rotates about the second hinge axis A2, the fastening piece 208 rotates together with the second housing 102 to lift the ball 209. It is separated from any one of the stopper grooves 233a and slides on the coupling protrusion 235. In this case, the ball 291 is slid to engage the other one of the stopper groove (233a).

The fastening elastic member 293 is to provide an elastic force that acts in both directions to move both ends away from each other to close the ball 291 to the stopper groove (233a). Accordingly, the ball 291 is held in engagement with the stopper groove 233a by the elastic force provided from the fastening elastic member 293. At this time, when the ball 291 is separated from the stopper groove 233a, both ends of the fastening elastic member 293 gradually narrow and accumulate an elastic force acting in a direction to move both ends away from each other. In addition, when the ball 291 is engaged again in a state in which the ball 291 is separated from the stopper groove 233a, the fastening elastic member 293 provides the accumulated elastic force to the ball 291 to provide the ball 291. Meshes with the stopper groove 233a. In addition, both ends of the fastening elastic member 293 are supported by the support piece 295 and the support 297, respectively.

One end of the fastening elastic member 293 is supported by the support piece 295 and is located between the fastening elastic member 293 and the ball 291. In addition, as the ball 291 is provided with an elastic force from the fastening elastic member 293 to be engaged or separated from the stopper groove 233a, the support piece 295 reciprocates within the fastening piece 208. Done. In this case, one end of the fastening elastic member 293 is supported by the support piece 295 and positioned in the fastening piece 208.

The support 297 is supported at the other end of the fastening elastic member 208 and is coupled to the housing coupling portion 285 of the fastening piece 208. In addition, a support groove 297a is formed at one end of the support 297, and the other end of the fastening elastic member 293 is fixed to the support groove 297a.

In a state where the second hinge shaft 203 and the fastening piece 208 are coupled to each other, the stopper coupling portion 285 and the second stopper protrusion 283 are formed in the direction of the second hinge axis A2. At this time, the stopper member 210 is provided to be in close contact with the fastening piece 208 while engaging with the stopper coupling portion 285. In addition, the stopper member 210 includes a fixing hole 210a and a second stopper rib 210b.

The fixing hole 210a penetrates from one surface of the stopper member 210 to the other end. The stopper coupler 235 is inserted into the fixing hole 210a to penetrate the stopper member 210, thereby closely contacting the fastening piece 208. In this case, a plane is formed on the inner circumferential surface of the fixing hole 210a to correspond to the stopper coupler 235 so that the stopper member 210 is fixed on the second hinge shaft 203.

The second stopper rib 210b protrudes from an outer circumferential surface of the stopper member 210. When the fastening piece 208 rotates about the second hinge shaft 203, the second stopper protrusion 283 contacts and interferes with both sides of the second stopper rib 210b. Thus, the second housing 102 is limited in its range in rotation about the second hinge axis (A2). In addition, when the second stopper protrusion 283 interferes with the second stopper rib 210a, the ball 295 is engaged with the stopper groove 233a. Therefore, the second housing 102 is maintained in the stopped state in the rotation range in the rotation in the direction of the second hinge axis (A2).

In the foregoing detailed description of the present invention, specific embodiments have been described. However, 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.

As described above, the hinge device of the portable terminal according to the present invention includes a first hinge shaft fixed to the first housing by a hinge housing in a first hinge axis direction, and a fastening piece in a second hinge axis direction on the second housing. By having a second hinge shaft to be fixed and a hinge housing for arranging the first and second hinge shafts perpendicular to each other, the second housing rotates with the hinge housing about the first hinge axis and is fastened about the second hinge axis. We will meet with you. This made the second housing openable in both directions perpendicular to each other on the first housing. Accordingly, the portable terminal not only performs a communication function in accordance with the opening direction of the second housing, but also provides convenience for using multimedia services such as broadcasting, and improves convenience of use.

Claims (10)

Providing a first housing, a second housing rotatably coupled to the first housing in a foldable or distant direction, and first and second hinge axes extending perpendicular to each other while rotatably coupling the first and second housings. In the portable terminal having a hinge device, the hinge device, A first hinge shaft fixed to the first housing along the first hinge axis direction; A second hinge shaft fixed to the second housing along the second hinge axis and rotating about the second hinge axis while pivoting about the first rotation axis; A first hinge arm installed in the first housing; A second hinge arm coupled to one end of the first hinge arm and rotating about the first hinge axis; And And a fastening piece coupled to the second housing while the second hinge shaft is penetrated, And the second housing pivots with the second hinge arm about the first hinge shaft and pivots with the fastening piece about the second hinge shaft. The method of claim 1, And a hinge housing accommodated in the second hinge arm to receive and couple the first hinge shaft, and fix a portion of the second hinge shaft. And the first and second hinge shafts are disposed perpendicular to each other by the hinge housing. The method of claim 2, A support fixed to the first hinge arm and engaged with the hinge housing; A first hinge cam fixed to the support; A second hinge cam that is linearly received within the hinge housing; And And an elastic member accommodated in the hinge housing and providing an elastic force acting in a direction in which the second hinge cam is in close contact with the first hinge cam. And the first and second hinge cams and the elastic member are disposed on the first hinge shaft and accommodated between the hinge housing and the support. The method of claim 3, wherein First ridges and first valleys alternately formed along the circumferential direction of one end of the first hinge cam; And Further comprising second valleys and second valleys formed in the second hinge cam and corresponding to the first valleys and the first valleys; And the first housing rotates about the first hinge axis to generate a rotational force acting in a direction to engage the second mountain parts with the first valley parts. The method of claim 3, wherein A first stopper protrusion formed on an outer circumferential surface of one end of the hinge housing; And Further provided with a first stopper rib formed on one end surface of the support, And the first stopper protrusion interferes with the first stopper rib to limit the rotation range of the second housing with respect to the first hinge axis. The method of claim 1, A coupling protrusion protruding from an outer circumferential surface of the second hinge shaft and accommodated in the fastening piece; Two or more stopper grooves formed at regular intervals along an outer circumferential surface of the coupling protrusion; And And a ball bearing device coupled to the fastening piece, the part of which engages with any one of the stopper grooves to hold the second housing fixed on the second hinge shaft. Device. The method of claim 6, wherein the fastening piece, A through hole formed to penetrate from one side to the other side of the fastening piece and accommodate the coupling protrusion; And The hinge device of the portable terminal, characterized in that it comprises a housing engaging portion extending in the direction of the first hinge axis from the outer peripheral surface of the fastening piece to engage with the second housing. The method of claim 6, wherein the ball bearing device, A ball engaged with any one of the stopper grooves by sliding in the engaging projection by the rotation of the fastening piece according to the rotation of the second housing; A fastening elastic member for providing an elastic force to closely contact the ball to any one of the stopper grooves; A support piece reciprocating in the fastening piece while supporting one end of the fastening elastic member; And And a support for supporting the other end of the fastening elastic member while being coupled with the fastening piece. The method of claim 6, A stopper member in close contact with the fastening piece and engaged with a part of the second hinge shaft in a state where the coupling protrusion is accommodated in the fastening piece; A second stopper protrusion formed at one end surface of the fastening piece; And And a second stopper rib formed on an outer circumferential surface of the stopper member, And the second stopper protrusion interferes with the second stopper rib to limit the rotation range of the second housing with respect to the second hinge axis. 10. The hinge device of claim 9, wherein when the second stopper protrusion interferes with the second stopper rib, the ball is engaged with one of the stopper grooves.
KR1020070056028A 2007-06-08 2007-06-08 Hinge apparatus for portable terminal KR20080107791A (en)

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Application Number Priority Date Filing Date Title
KR1020070056028A KR20080107791A (en) 2007-06-08 2007-06-08 Hinge apparatus for portable terminal

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