KR20110005077A - 2-axis hinge apparatus and portable terminal having it - Google Patents

2-axis hinge apparatus and portable terminal having it Download PDF

Info

Publication number
KR20110005077A
KR20110005077A KR1020090062603A KR20090062603A KR20110005077A KR 20110005077 A KR20110005077 A KR 20110005077A KR 1020090062603 A KR1020090062603 A KR 1020090062603A KR 20090062603 A KR20090062603 A KR 20090062603A KR 20110005077 A KR20110005077 A KR 20110005077A
Authority
KR
South Korea
Prior art keywords
hinge
housing
stopper
axis
hinge shaft
Prior art date
Application number
KR1020090062603A
Other languages
Korean (ko)
Inventor
임경원
Original Assignee
임경원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 임경원 filed Critical 임경원
Priority to KR1020090062603A priority Critical patent/KR20110005077A/en
Publication of KR20110005077A publication Critical patent/KR20110005077A/en

Links

Images

Classifications

    • 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
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0222—Foldable in two directions, i.e. using a two degree of freedom hinge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Telephone Set Structure (AREA)

Abstract

The present invention provides a biaxial hinge device rotatably coupling first and second housings constituting a portable terminal and providing first and second hinge axes extending in a vertical direction to each other. A first hinge shaft mounted to the first housing accordingly; A second hinge shaft mounted to the second housing along the second hinge axis direction to rotate about the first hinge axis and to rotate about the second hinge axis; A pair of first stopper grooves formed on an outer circumferential surface of the first hinge shaft along the first hinge axis direction and recessed in the thickness direction at positions symmetrical with respect to the first hinge axis at intervals in the circumferential direction of the first hinge shaft. ; A second stopper groove formed along the circumferential direction on the outer circumferential surface of the second hinge shaft, the upper and lower ends being dug with the same width in the thickness direction so as to insert a stopper surface formed between the pair of first stopper grooves; And a hemispherical groove which is dug in a form that can wrap a portion of the outer circumferential surface of the first hinge shaft, and which is dug so that a second stopper groove is located at the center thereof, wherein one of the housings of the terminal is rotated about one of the hinge shafts. It is configured to limit rotation about one hinge axis at one time.

Description

2-axis hinge device and portable terminal having same {2-AXIS HINGE APPARATUS AND PORTABLE TERMINAL HAVING IT}

The present invention relates to a two-axis hinge device, and more specifically, to open and close the cover (folder) of the portable terminal in two directions from the main body to enable the user to use the multimedia services, such as performing communication functions and watching broadcasts A two-axis hinge device for improving workability, productivity and structural stability. The present invention also relates to a portable terminal having the two-axis hinge device as described above.

Portable terminals are generally classified into a flip type, a folder type, and a sliding type according to their appearance and operation method. Among them, the folder-type portable terminal is connected to the upper part of the folder and the upper part of the main body by a hinge device, and is opened from the main body by lifting the lower part of the folder and closed in the reverse operation. This opening and closing method is applied uniformly to a conventional folder type terminal.

However, since the appearance of the conventional portable terminals has been developed based on the appearance suitable for performing communication functions such as voice call and message transmission, it is inconvenient to use a multimedia service. For example, since a display device of a general portable terminal is set to be long in the vertical direction, it is inconvenient to watch digital multimedia broadcasting (DMB), video files, and the like.

In order to solve the above problems, a portable terminal is developed which is convenient not only for performing communication functions but also for using multimedia services such as broadcasting and watching.

As shown in FIGS. 1 to 3, the portable terminal 100 according to the related art includes a first housing 101 and a second housing 102, and the second housing 102 extends perpendicular to each other. The first and second hinge axes A1 and A2 can be rotated about the center.

At this time, the second housing 102 selects any one of the first and second hinge axes A1 and A2 and rotates it around the first housing 101 when the second housing 102 is folded on the first housing 101. In a state in which the hinge shafts A1 and A2 are rotated about one of the hinge shafts A1 and A2 and are separated from the first housing 101, they cannot rotate about the other hinge shafts. This is because the hinge device that makes the second housing 102 pivotable with respect to the first housing 101 is configured to have such a function.

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. By opening and closing. 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 width of the first housing 101 is to install the second hinge arm 125 described below. It will provide space for it.

The second housing 102 is provided with a display device 121 and a receiver 123 on one surface thereof, and a second hinge arm 125 mounted on one end thereof. The second hinge arm 125 is coupled with its one end facing the one end of the first hinge arm 115, and is rotated about the first hinge axis A1. Therefore, the second housing 102 also rotates about the first hinge axis A1 together with the second hinge arm 125.

Since 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 in a state where the second housing 102 is folded to the first housing 101, or rotates the second hinge axis A2. It rotates about the 2nd hinge arm 125 as a center.

FIG. 2 illustrates a view in which the second housing 102 is rotated about the first hinge axis A1 to be opened, and FIG. 3 illustrates the second housing 102 about the second hinge axis A2. It shows the openness of the meeting.

Referring to FIG. 2, in the state where the second housing 102 is rotated and opened about the first hinge axis A1, it can be seen that the external portable terminal 100 is the same as a general folding terminal. Therefore, when the second housing 102 is rotated and opened about the first hinge axis A1, the user can conveniently use a general mobile communication function or a game.

Referring to FIG. 3, in a state in which the second housing 102 is rotated about the second hinge axis A2 and opened, the portable terminal 100 in an external shape may provide a long screen in a horizontal direction. It can be seen that it can be placed. Therefore, when the second housing 102 is rotated and opened about the second hinge axis A2, the user can conveniently use a multimedia service such as broadcasting by using the portable terminal 100.

Hereinafter, a two-axis joint apparatus used in the portable terminal 100 will be described.

4 is an exploded perspective view showing a two-axis hinge device of the portable terminal shown in Figure 1, Figure 5 is an assembled perspective view showing a two-axis hinge device of the portable terminal shown in Figure 1, Figure 6 is shown in Figure 5 FIG. 7 is a perspective view illustrating a part of the biaxial hinge apparatus as projected, and FIG. 7 is a view for explaining a ball assembly of the biaxial hinge apparatus illustrated in FIG. 5.

As shown in FIGS. 1 to 7, the biaxial hinge device 200 according to the related art includes a first hinge shaft 205 mounted to the first housing 101 along a first hinge axis A1 direction, and A second hinge shaft mounted on the second housing 102 along the direction of the second hinge axis A2 to rotate about the first hinge axis A1 and to rotate about the second hinge axis A2; 203). In addition, the biaxial hinge device 200 includes a hinge housing 201 and a second housing 102 in order to configure a single module form including the first and second hinge shafts 205 and 203. The first and second hinge cams 202 and 204, the elastic member 206, the ball assembly, and the like are provided to provide the driving force and the stopping force to rotate.

In addition, the biaxial hinge device 200 includes a first stopper groove 251 formed on an outer circumferential surface of the first hinge shaft 205 along the first hinge axis A1, and an outer circumferential surface of the second hinge shaft 203. A second stopper groove 237a formed along the circumferential direction and enclosing a portion of the outer circumferential surface of the first hinge shaft 205, and selectively engaged with the first stopper groove 251. A stopper rib 237b is provided. Therefore, when the second housing 102 is rotated and opened about the first hinge axis A1, the stopper rib 237b interferes with the outer circumferential surface of the first hinge shaft 205 so that the second housing 102 is closed. When the rotation is about the second hinge axis A2 and the second housing 102 is rotated about the second hinge axis A2 to open, the stopper rib 237b opens the first stopper groove ( 251 to restrict rotation of the second housing 102 about the first hinge axis (A1).

However, in the conventional biaxial hinge device 200, the second stopper groove 237a having the rounded shape as shown in FIG. 7 may cover the portion of the outer circumferential surface of the first hinge shaft 205. Are formed continuously along the circumferential direction on the outer circumferential surface thereof. It is also configured to have a stopper rib 237b selectively engaged with the first stopper groove 251 in the second stopper groove 237a. That is, since the second stopper groove 237a must be formed on the outer circumferential surface of the second hinge shaft 203 in the circumferential direction as a whole, and the stopper rib 237b must be formed along the inside of the second stopper groove 237a. There is a difficulty in making. In addition, when the second housing 102 is rotated about the second hinge axis A2 and opened, only the stopper rib 237b is engaged with the first stopper groove 251, so that the second housing 102 is closed. When an external impact force for rotating the center around the first hinge axis A1 is applied, a tensile force is applied to the rounded portion of the second stopper groove 237a, and the portion is damaged.

In addition, the conventional biaxial hinge device 200 uses a screw 265 to provide a metal ball 261 and a spring in the first hinge cam 202 to provide a stopping force to the rotating second housing 102. 263 is configured to be embedded. That is, in order to embed the metal ball 261 and the spring 263 in the first hinge cam 202, the first hinge cam 202 has to be processed, which is difficult to manufacture. In addition, since the metal ball 261 and the spring 263 are to be embedded in the first hinge cam 202, the size of the first hinge cam 202 is inevitably increased, thereby increasing the thickness of the portable terminal 100. There is a drawback to thickening.

Accordingly, the present invention has been made in order to solve the problems of the prior art as described above, by opening and closing the cover (folder) of the portable terminal in two directions from the main body to use the multimedia service, such as performing a communication function and broadcasting viewing to the user In addition to improving the stopper structure for selectively limiting the rotation of the cover and the opening angle limiting structure for limiting the opening angle of the cover, a two-axis hinge device for improving workability, productivity and structural stability, and The purpose is to provide a portable terminal.

The present invention provides a biaxial hinge device rotatably coupling first and second housings constituting a portable terminal and providing first and second hinge axes extending in a vertical direction to each other. A first hinge shaft mounted to the first housing accordingly; A second hinge shaft mounted to the second housing along the second hinge axis direction to rotate about the first hinge axis and to rotate about the second hinge axis; A pair of first stopper grooves formed on an outer circumferential surface of the first hinge shaft along the first hinge axis direction and recessed in the thickness direction at positions symmetrical with respect to the first hinge axis at intervals in the circumferential direction of the first hinge shaft. ; A second stopper groove formed along the circumferential direction on the outer circumferential surface of the second hinge shaft, the upper and lower ends being dug with the same width in the thickness direction so as to insert a stopper surface formed between the pair of first stopper grooves; And a hemispherical groove which is dug in a shape that can wrap a portion of the outer circumferential surface of the first hinge shaft, and which is dug so that a second stopper groove is located at the center thereof, and when the second housing is rotated about the first hinge shaft and opened. When the hemispherical groove interferes with the outer circumferential surface of the first hinge shaft to restrict the second housing from rotating about the second hinge axis, and when the second housing is opened by rotating around the second hinge axis, the second stopper groove is a stopper. And a portion of the outer circumferential surface of the second hinge shaft are respectively engaged with the pair of first stopper grooves, thereby limiting the rotation of the second housing about the first hinge axis.

The present invention includes a first hinge housing mounted to the first housing; And a holder and a second hinge housing mounted to the second housing, wherein the first hinge shaft is fixed to the first hinge housing through the holder and the second hinge housing, and the holder and the second hinge housing are connected to the first hinge housing. The shaft may be supported and rotated about the first hinge axis.

The present invention provides an apparatus comprising: an end wall formed on a guide surface constituting an outer surface of a holder; And a leaf spring coupled to the end of the second hinge shaft and moving along the guide surface to interfere with the end wall, thereby limiting the extent to which the second hinge shaft rotates about the second hinge axis.

The present invention further includes a stopper pin which is inserted into the second stopper groove of the second hinge shaft and interferes with the stopper face of the first hinge shaft, thereby limiting the range in which the second hinge shaft rotates about the second hinge axis. have.

The second hinge shaft of the present invention is rotatably coupled to the holder and can rotate about the second hinge axis.

The present invention may further include a leaf spring assembly for bringing the end portion of the second hinge shaft into close contact with the guide surface constituting the outer surface of the holder.

The leaf spring assembly of the present invention comprises: at least a pair of third stopper grooves formed in the guide surface of the holder; And a leaf spring having a projection on one side that selectively engages with the third stopper grooves while pressing the guide surface, and when the second housing is rotated about the second hinge axis in the state of being folded in the first housing, the projection Can engage one of the third stopper grooves.

The leaf spring assembly of the present invention may further include a fourth stopper groove formed on the guide face of the holder and engaged with the projection of the leaf spring when the second housing is folded to the first housing.

The present invention, the first stopper protrusion formed on one end of the first hinge housing; And a second stopper protrusion protruding from an outer circumferential surface of the second hinge housing, wherein the second stopper protrusion interferes with the first stopper protrusion when the second housing rotates about the first hinge axis to move away from the first housing. The rotation of the second housing can be stopped.

The invention comprises a first hinge cam fixed in a first hinge housing; A second hinge cam installed in the second hinge housing so as to allow linear movement only and facing the first hinge cam; And an elastic member accommodated in the second hinge housing and providing an elastic force acting in the direction in which the second hinge cam is in close contact with the first hinge cam.

The first hinge shaft of the present invention may sequentially pass through the elastic member, the second hinge cam, and the first hinge cam, and its ends may be fixed to the first hinge housing.

The present invention is capable of rotating the first housing and the second housing while providing a first housing, a second housing rotatably coupled to and opened by the first housing, and first and second hinge axes extending in a vertical direction to each other. A portable terminal having a two-axis hinge device coupled to each other, wherein the two-axis hinge device is configured as described above.

The present invention improves the stopper structure to selectively limit the rotation of the cover (second housing), forming a pair of first stopper grooves in the first hinge shaft, and a pair of first stopper grooves in the second hinge shaft. The second stopper groove and the hemispherical groove which serve as a rotational or stopper function to form a stopper rib are not formed in the inside of the second stopper groove as in the prior art. .

In addition, the present invention provides that when the second housing is rotated and opened about the second hinge axis, the second stopper groove faces the stopper surface between the pair of first stopper grooves, and a portion of the outer circumferential surface of the second hinge shaft is paired. By engaging in the mating state respectively facing each of the first stopper grooves of, even if an external impact force for rotating the second housing about the first hinge axis is applied, the second stopper groove portion has structural stability without fear of breakage.

In addition, the present invention improves the opening angle limiting structure for limiting the opening angle by providing a stopping force to the second housing that rotates around the second hinge axis, but by forming a leaf spring assembly that functions to the outside of the holder It is easy to manufacture and has excellent workability and productivity. Furthermore, by forming the leaf spring assembly on the outside without being embedded in the holder, there is an advantage that the thickness of the portable terminal can be configured thin.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a biaxial hinge device and a portable terminal having the same according to the present invention will be described in detail.

First, a biaxial joint apparatus that can be used in the portable terminal 100 shown in FIGS. 1 to 3 will be described.

8 and 9 are exploded perspective views showing the configuration of the two-axis hinge device according to an embodiment of the present invention, Figures 10 and 11 are combined and projection perspective views of the two-axis hinge device shown in Figure 9, 12 and 13 are schematic views showing an initial coupling state of the biaxial hinge device shown in FIG. 11, and FIGS. 14 and 15 are views in which the second hinge shaft shown in FIG. 11 is rotated about a first hinge axis. 16 and 17 are schematic views showing a state in which the second hinge shaft shown in FIG. 11 is rotated about a second hinge axis.

1 to 3 and 8 to 17, the biaxial hinge device 300 of this embodiment is a first hinge mounted to the first housing 101 along the first hinge axis A1 direction. It is mounted on the shaft 305 and the second housing 102 along the direction of the second hinge axis A2 to rotate about the first hinge axis A1 and to rotate about the second hinge axis A2. And a second hinge shaft 303. When the second hinge shaft 303 pivots about the first hinge axis A1, the second housing 102 rotates about the first hinge axis A1, and the second hinge shaft 303 is second to the second hinge shaft 303. When rotating about the hinge axis A2, the second housing 102 rotates about the second hinge axis A2.

In addition, the biaxial hinge device 300 includes the first and second hinge housings 301 and 307 and the holder 308 in order to form a single module including the first and second hinge shafts 305 and 303. And the first and second hinge cams 302 and 304, the elastic member 306, the leaf spring assembly, and the like, to provide the driving force and the stopping force to rotate the second housing 102, and the like. Can be.

The first hinge housing 301 is formed in a cylindrical shape and is mounted in the first hinge arm 115 and extends in the direction of the first hinge axis A1. The second hinge housing 307 is embedded in the first hinge arm 115 so that one side thereof is rotatably inserted into the first hinge housing 301 and extends in the direction of the first hinge axis A1.

The second hinge housing 307 sequentially receives the elastic member 306 and the second hinge cam 304 in the hole extending from one end thereof, and the end of the first hinge shaft 305 has the elastic member 306. In addition, the second hinge cam 304 and the first hinge cam 302 are sequentially penetrated and fixed to the inside of the first hinge housing 301. A fixing hole 311 is formed in the first hinge housing 301, and a pin hole 353 is formed in one end of the first hinge shaft 305. Accordingly, the fixing pin 357, which penetrates the pin hole 353 and is fixed to the fixing hole 311, fixes the first hinge shaft 305 to the first hinge housing 301. At this time, the through hole 323 is formed in a position corresponding to the through hole 311 of the first hinge housing 301 in the first rotating cam 302, and the first rotating cam 302 is fixed with a pin 357. ) Is fixed to the first hinge housing 301 together with the first hinge shaft 305. Accordingly, the first hinge shaft 305 is positioned on the first hinge axis A1 to rotate the first hinge cam 302 about the first hinge axis A1 and to rotate the first hinge housing 301 and The second housing 102 can be rotated.

On the outer circumferential surface of the other end of the first hinge shaft 305, a pair of first grooves which are dug in the thickness direction at positions symmetrical with respect to the first hinge axis A1 at intervals in the circumferential direction of the first hinge shaft 305. A stopper surface 355 located between the first stopper groove 351 and the pair of first stopper grooves 351 is formed. The first stopper groove 351 is excavated by a predetermined depth in the thickness direction of the first hinge shaft 305, and has a semicircular shape when viewed from the side. That is, the pair of first stopper grooves 351 may have a form that may cover a portion of the outer circumferential surface of the second hinge shaft 303. Therefore, when the second housing 102 rotates in the direction of the second hinge axis A2 and moves away from the first housing 101, the pair of first stopper grooves 351 and the stopper surface 355 will be described later. The second stopper groove 333 of the second hinge shaft 303 is engaged to restrict the rotation of the second housing 102 about the first hinge axis A1.

The holder 308 is formed integrally with the second hinge housing 307, and the first and second hinge shafts 305 and 303 are rotatably coupled to the holder 308, respectively, in the holder 308. The first and second hinge shafts 305 and 303 cross each other. A pair of first ridges 321 are formed on one surface of the first hinge cam 302, and the first ridges 321 are located in the first hinge housing 301.

The second hinge cam 304 is installed to allow linear motion only in the second hinge housing 307, and the elastic member 306 is accommodated in the second hinge housing 307 to remove the second hinge cam 304. One hinge cam 302 is provided to provide an elastic force acting in the direction in close contact. Accordingly, the first hinge cam 302 is rotated about the first hinge axis A1 while rubbing against the second hinge cam 304.

At this time, the second hinge cam 304 has a pair of second peaks 341 and valleys 343 are alternately formed along the circumferential direction. Therefore, when the second hinge cam 304 is in close contact with the first hinge cam 302 by receiving the elastic force of the elastic member 306, the first hinge cam 302 may have the first ridges 321 having the bone portion ( 343) to rotate in the direction of engagement. That is, the elastic force of the elastic member 306 acts as a driving force for rotating the first hinge cam 302.

Meanwhile, the biaxial hinge device 300 includes first and second stopper protrusions 313 and 371 to limit the range in which the second housing 102 rotates about the first hinge axis A1. . The first stopper protrusion 313 protrudes from the outer peripheral surface of one end of the first hinge housing 301, and the second stopper protrusion 371 protrudes around a part of the outer peripheral surface of the second hinge housing 307. Accordingly, when the first hinge shaft 306 is fixed to the first hinge housing 301, a part of the second stopper protrusion 371 faces an outer circumferential surface of one end of the first hinge housing 301, and the holder 308 ) Rotates in the circumferential direction along the outer circumferential surface of one end of the first hinge housing 301.

10 and 11, when the first and second housings 101 and 102 are set in the folded state, the holder 308 may be 155 to 170 degrees around the first hinge axis A1. Can rotate In addition, if the size or position of the first and second stopper protrusions 313 and 371 are changed, the range of the angle at which the holder 308 can rotate may be variously changed. Thereby, the range of the angle to which the 2nd housing 102 rotates about the 1st hinge axis A1 can be set suitably for a product.

The second hinge shaft 303 is fixed to the second housing 102 and positioned on the second hinge axis A2, and one end thereof has a fastening piece 331 fixed to the second housing 102. . The fastening piece 331 extends in the vertical direction of the second hinge shaft 303 and is integrally formed at the end of the second hinge shaft 303, and a plurality of holes for fastening screws or the like are formed. The second housing 102 provides a means for fastening the second hinge shaft 303.

In order to limit the range in which the second hinge shaft 303 rotates about the second hinge axis A2, the leaf spring 309 is coupled to the other end of the second hinge shaft 303, and the holder 308 is connected thereto. An end wall of the guide face 381 is formed in the holder 308, and the holder 308 has a stopper pin 395 fitted into the second stopper groove 333 of the second hinge shaft 303. On one side of the holder 308, an insertion hole 385 into which the stopper pin 395 is fitted is formed at a portion coinciding with the second stopper groove 333, and on the other side, the stopper pin 395 fitted into the insertion hole 385. The hole 387 for the purpose of pushing and removing from the insertion hole 385 is formed. At this time, the holes 385 and 387 are formed at staggered positions not partially penetrating but partially penetrating.

The leaf spring 309 is fitted to the outer peripheral surface of the other end of the second hinge shaft 303 and fixed by the E ring 391. When the second hinge shaft 303 rotates, the leaf spring 309 moves along the guide surface 381. At this time, when one end of the leaf spring 309 interferes with the end wall of the guide surface 381, the second hinge shaft 303 can no longer rotate. In addition, when the stopper surface 355 of the first hinge shaft 305 interferes with the stopper pin 395 fitted into the second stopper groove 333, the second hinge shaft 303 can no longer be rotated. As a result, the rotation of the second hinge shaft 303 is limited, and as a result, the second housing 102 is restricted from rotating about the second hinge axis A2.

At this time, the configuration of the leaf spring 309, the guide surface 381, the stopper pin 395, the second housing 102 is rotated in a direction away from the first housing 101 about the second hinge axis (A2) It is to limit the scope to do.

The leaf spring assembly provides frictional force as the second hinge shaft 303 rotates, and also stops or stops the rotation of the second housing 102 at a certain position as it rotates about the second hinge axis A2. To keep it in a state. That is, by providing the friction force or the stopping force to the second hinge shaft 303 by the leaf spring assembly, it is possible to limit the flow of the second housing 102 irrespective of the user's intention.

The leaf spring assembly includes at least one pair of third stopper grooves 383 formed in the guide surface 381 of the holder 308 and the third stopper groove 383 while pressing the guide surface 381 of the holder 308. ) And a leaf spring 309 that selectively engages the blades. One side of the leaf spring 309 is formed with a projection (393) for selectively engaging with the third stopper groove (383). The leaf spring 309 is fixed to the outer circumferential surface of the other end of the second hinge shaft 303 by the E ring 391, and is fixed in a state of pressing the guide surface 381 of the holder 308.

The third stopper grooves 383 are formed on a trajectory that rubs against the protrusion 393 of the leaf spring 309 as the second hinge shaft 303 rotates. Thus, as the second hinge shaft 303 rotates, the protrusion 393 meshes with one of the third stopper grooves 383 to rotate the second hinge shaft 303, ultimately the second hinge axis A2. The second housing 102 that rotates about the center is stopped or maintained.

In this case, one of the third stopper grooves 383 is engaged with the protrusion 393 when the second housing 102 is opened by 150 degrees from the first housing 101 and the other is opened by 175 degrees. do. That is, when the second housing 102 rotates about the second hinge axis A2 and is opened by 150 degrees or 175 degrees from the first housing 101, the protrusion 393 is the third stopper groove 383. Engaging with one of them to maintain a stable state of the second housing (102).

Likewise, when the second housing 102 is folded into the first housing 101, the leaf spring assembly may further include a fourth stopper groove (not shown) to keep the second housing 102 stationary. have. That is, the fourth stopper groove is formed on the guide surface 381 of the holder 308 to be engaged with the protrusion 393 when the first and second housings 101 and 102 are folded.

Thus, when the second housing 102 is folded to the first housing 101 or rotated about the second hinge axis A2 and opened by 150 degrees or 175 degrees, the leaf spring assembly is connected to the second housing 102. It is to keep the stationary state.

Hereinafter, the configuration of the second stopper groove 333 and the hemispherical groove 335 formed on the outer circumferential surface of the second hinge shaft 303 will be described.

The second stopper groove 333 is formed on the outer circumferential surface of the other end of the second hinge shaft 303 and extends in the circumferential direction. That is, the second stopper groove 333 has a shape in which the upper and lower ends thereof are dug in the thickness direction from the outer circumferential surface of the second hinge shaft 303 in the same width. In addition, the hemispherical groove 335 is formed such that the second stopper groove 333 is positioned at the center thereof and surrounds a portion of the outer circumferential surface of the first hinge shaft 303. Therefore, when the first and second hinge shafts 305 and 303 are coupled in the holder 308, the hemispherical groove 335 surrounds a portion of the outer circumferential surface of the first hinge shaft 305.

Looking at the order of assembling the first and second hinge shafts 305 and 303, first coupling the second hinge shaft 303 to the holder 308, and then attaching the first hinge shaft 305 to the holder 308 Penetrated. When the second hinge shaft 303 is coupled to the holder 308, the hemispherical groove 335 forms part of the hole to which the first hinge shaft 305 is coupled.

That is, a portion of the holder 308 to which the first and second hinge shafts 305 and 303 are coupled overlaps with each other, and the hemispherical groove 335 is positioned at the overlapped portion. Accordingly, the first hinge shaft 305 may be assembled to the holder 308 without interfering with the second hinge shaft 303, and a portion of the outer circumferential surface of the first hinge shaft 305 is surrounded by the hemispherical groove 335. Will be.

At this time, the other portion adjacent to the hemispherical groove 335 interferes with the first hinge shaft 305, the second hinge shaft 303 is limited to move along the direction of the second hinge axis (A2). Accordingly, the second hinge shaft 303 is constrained to be rotatable in the holder 308 even without providing a separate fixing or fastening means.

When the holder 308 rotates about the first hinge axis A1 while the first and second housings 101 and 102 are folded, the second housing 102 may move away from the first housing 101. It rotates and the hemispherical groove 335 turns about the 1st hinge axis A1 in the state which faces the outer peripheral surface of the 1st hinge shaft 305. As shown in FIG. Since the hemispherical groove 335 faces the outer circumferential surface of the first hinge shaft 305 while the second housing 102 is far from the first housing 101, the periphery of the hemispherical groove 335 is formed around the first hinge shaft ( The second hinge shaft 303 cannot rotate about the second hinge axis A2 because it interferes with the outer circumferential surface of the 305. Therefore, the second housing 102 cannot rotate about the second hinge axis A2 while rotating about the first hinge axis A1 and away from the first housing 101, and thus cannot be rotated about the first hinge axis A1. It is only possible to rotate around (A1).

When the second hinge shaft 303 rotates about the second hinge axis A2 in a state where the first and second housings 101 and 102 are folded, the second housing 102 is the first housing 101. Rotate away from, and the second stopper groove 333 rotates about the second hinge axis A2 to enter the stopper surface 355 located between the pair of first stopper grooves 351, and A portion of the outer circumferential surface of the second hinge shaft 303 located at both sides of the second stopper groove 333 enters the pair of first stopper grooves 351, respectively. Therefore, the second hinge shaft 303 is restrained from turning about the first hinge axis A1, and only the second hinge shaft 303 can be rotated about the second hinge axis A2. As a result, when the motor rotates around the second hinge axis A2 and moves away from the first housing 101, the second housing 102 can only rotate about the second hinge axis A2.

As shown in FIGS. 8 to 13, in a state where the first and second housings 101 and 102 are folded, the first ridges 321 of the first hinge cam 302 may be the second hinge cam 304. It is maintained in engagement with the bone portion (343) of the), and the hemispherical groove 335 is to maintain a state facing the pair of the first stopper groove 351 and the stopper surface 355. Therefore, in the state where it is folded in the 1st housing 101, the 2nd housing 102 is a state which can be rotated about either one of the 1st, 2nd hinge axis A1, A2.

8 to 11, 14, and 15, when the second housing 102 rotates about the first hinge axis A1 from the state in which the second housing 102 is folded on the first housing 101, the hemispherical groove 335 moves along the outer circumferential surface of the first hinge shaft 305 from the state facing the pair of first stopper grooves 351 and the stopper surface 355.

At this time, the first ridges 321 gradually move away from the valleys 343 to the highest points of the second ridges 341. When the first ridges 321 deviate from the valleys 343, the second hinge cam 304 is retracted into the second hinge housing 307, and the elastic member 306 has the second hinge cam ( It provides an elastic force acting in the direction in which the 304 is in close contact with the first hinge cam 302. The elastic force of the elastic member 306 is converted into a driving force for rotating the first hinge cam 302 in the direction in which the first mountain portion 321 is engaged with the valleys 343 again. Therefore, the second housing 102 is provided with a driving force acting in the direction in which the first housing 101 is folded.

When the second housing 102 further rotates in a direction away from the first housing 101 such that the first peaks 321 pass the highest point of the second peaks 341, the driving force of the biaxial hinge device 300 is The second housing 102 acts in a direction away from the first housing 101.

That is, when the second housing 102 is rotated about the first hinge axis A1, the second housing 102 is in a direction within the predetermined angle and folds in the direction of the first housing 101, and is out of the range within the predetermined angle. 1 The driving force acting in the direction away from the housing 101 is generated.

When the second housing 102 rotates about the first hinge axis A1 to reach 155 degrees to 170 degrees, the first and second stopper protrusions 313 and 371 interfere with each other, so that the second housing 102 Is stopped. According to the positions of the first and second stopper protrusions 313 and 371, an angle at which the second housing 102 is stopped may be set in various ways, and the stopping angle may be appropriately set by those skilled in the art according to a product.

While the second housing 102 is rotated about the first hinge axis A1, the protrusion 393 of the leaf spring 309 is engaged with the fourth stopper groove, and the hemispherical groove 335 is Since it faces the outer peripheral surface of the 1st hinge shaft 305, the 2nd housing 102 is a state which cannot rotate about the 2nd hinge axis A2.

8 to 11, 16, and 17, when the second housing 102 rotates about the second hinge axis A2 and moves away from the first housing 101, the leaf spring 309. Protrusion 393 is separated from the fourth stopper groove and rubs against the guide surface 381 of the holder 308, and the second stopper groove 333 is located between the pair of first stopper grooves 351. A portion of the outer circumferential surface of the second hinge shaft 303 positioned at both sides of the second stopper groove 333 enters the pair of first stopper grooves 351, respectively.

As the second stopper groove 333 enters the stopper surface 355 and a portion of the outer circumferential surface of the second hinge shaft 303 enters the pair of first stopper grooves 351 and engages with each other, the second housing ( 102 cannot rotate about the first hinge axis A1. That is, while rotating about the second hinge axis A2, the second housing 102 is restricted from rotating about the first hinge axis A1.

When the second housing 102 rotates about the second hinge axis A2 to reach 150 degrees or 175 degrees from the first housing 101, the protrusion 393 of the leaf spring 309 is formed in the third stopper groove. Meshes with one of (383). Therefore, the user may stop the second housing 102 at an appropriate angle according to a service to be used such as a multimedia service or a game and a usage environment such as walking or inside a vehicle.

On the other hand, when the second housing 102 is rotated about the second hinge axis A2 and opened by 175 degrees, one side of the leaf spring 333 interferes with the end wall of the guide surface 381, and further, The stopper face 355 of the one hinge shaft 305 interferes with the stopper pin 395. Therefore, it is impossible for the second housing 102 to rotate to a position away from the first housing 101 by more than 175 degrees. In this case, the range in which the second housing 102 rotates about the second hinge axis A2 may vary depending on the angle at which the guide surface 381 extends and the position of the stopper pin 395. Is self explanatory.

In the above-described embodiment, the biaxial hinge device 300 is mounted on the first and second housings 101 and 102 constituting the conventional portable terminal 100, but the fastening piece of the second hinge shaft 303 ( The 331 is fixed to the second housing 102 constituting the cover, and other components are mounted and mounted in the first housing 101 constituting the main body, but the two-axis hinges on various portable terminals 100A and 100B. The mounting portion of the device 300 may be configured differently.

18 to 20 are schematic views showing an example of a mobile terminal equipped with a two-axis hinge device according to the present invention, but showing a folded or opened state, respectively, and FIGS. 21 to 23 are two-axis hinge devices according to the present invention. Another example of the mounted mobile phone terminal is a schematic diagram showing a folded or open state, respectively.

As shown in FIGS. 18 to 23, the biaxial hinge device 300 is applied to the portable terminals 100A and 100B having a structure different from that of the conventional portable terminal 100. In the same manner, the fastening piece 331 of the second hinge shaft 303 is fixed to the second housing 102A constituting the cover, and the component is mounted in the first housing 101A constituting the main body. 18 to 20, the fastening piece 331 of the second hinge shaft 303 is fixed to the first housing 101B constituting the main body, and the second component constituting the cover as shown in FIGS. It can be mounted in the housing 102B and comprised.

Although the technical details of the biaxial hinge device of the present invention and a portable terminal having the same have been described together with the accompanying drawings, the present invention has been described by way of example and is not intended to limit the present invention.

In addition, it is obvious that any person skilled in the art can make various modifications and imitations within the scope of the appended claims without departing from the scope of the technical idea of the present invention.

1 is a perspective view showing a portable terminal having a two-axis hinge device according to the prior art,

FIG. 2 is a perspective view illustrating a state in which a second housing of the portable terminal illustrated in FIG. 1 is rotated and opened about a first hinge axis;

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 an exploded perspective view showing a two-axis hinge device of the portable terminal shown in FIG.

5 is an assembled perspective view showing a two-axis hinge device of the portable terminal shown in FIG.

FIG. 6 is a perspective view of a part of the biaxial hinge apparatus illustrated in FIG. 5 by projecting the same;

7 is a view for explaining a ball assembly of the biaxial hinge device shown in FIG.

8 and 9 are exploded perspective views showing the configuration of the two-axis hinge device according to an embodiment of the present invention,

10 and 11 are combined and projection perspective views of the biaxial hinge device shown in FIG.

12 and 13 are schematic views showing an initial coupling state of the two-axis hinge device shown in FIG.

14 and 15 are schematic views showing a state in which the second hinge shaft shown in FIG. 11 is rotated about a first hinge axis;

16 and 17 are schematic views showing a state in which the second hinge shaft shown in FIG. 11 is rotated about a second hinge axis;

18 to 20 are schematic views showing an example of a mobile terminal equipped with a two-axis hinge device according to the present invention, but showing a folded or opened state, respectively.

21 to 23 are schematic views showing another example of a mobile terminal equipped with a two-axis hinge device according to the present invention, but showing a folded or opened state, respectively.

  ♠ Explanation of symbols on the main parts of the drawing ♠

301: first hinge housing 302: first hinge cam

303: second hinge shaft 304: second hinge cam

305: first hinge shaft 306: elastic member

307: second hinge housing 308: holder

309: leaf spring

Claims (12)

A two-axis hinge device rotatably coupling first and second housings constituting a portable terminal and providing first and second hinge axes extending in a vertical direction to each other. A first hinge shaft mounted to the first housing along the first hinge axis direction; A second hinge shaft mounted to the second housing along the second hinge axis direction to rotate about the first hinge axis and to rotate about the second hinge axis; A pair of grooves formed on an outer circumferential surface of the first hinge shaft along the first hinge axis direction and dug in a thickness direction at positions symmetrical with respect to the first hinge axis at intervals in the circumferential direction of the first hinge shaft; A first stopper groove; A second stopper groove formed along the circumferential direction on an outer circumferential surface of the second hinge shaft, and having a top and bottom end cut in the same width in the thickness direction so that a stopper surface formed between the pair of first stopper grooves can be inserted; And It is dug into a shape that can wrap a portion of the outer circumferential surface of the first hinge shaft, and has a hemispherical groove that is dug to the center of the second stopper groove, When the second housing is rotated and opened about the first hinge axis, the hemispherical groove interferes with the outer circumferential surface of the first hinge shaft to restrict the second housing from rotating about the second hinge axis, When the second housing is rotated and opened about a second hinge axis, the second stopper groove is engaged with the stopper surface, and a portion of an outer circumferential surface of the second hinge shaft is respectively provided in the pair of first stopper grooves. In engagement, restricting rotation of the second housing about the first hinge axis. The method according to claim 1, A first hinge housing mounted to the first housing; And And a holder and a second hinge housing mounted to the second housing, The first hinge shaft is fixed to the first hinge housing through the holder and the second hinge housing, and the holder and the second hinge housing are supported by the first hinge shaft and centered on the first hinge shaft. 2-axis hinge device, characterized in that for rotating. The method according to claim 2, An end wall formed on a guide surface constituting an outer surface of the holder; And Further comprising a leaf spring coupled to an end of the second hinge shaft and moving along the guide surface and interfering with the end wall; And the second hinge shaft limits a range in which the second hinge shaft rotates about the second hinge axis. The method according to claim 3, And a stopper pin inserted in the second stopper groove of the second hinge shaft to interfere with the stopper surface of the first hinge shaft, And the second hinge shaft limits a range in which the second hinge shaft rotates about the second hinge axis. The method according to claim 2, And the second hinge shaft is rotatably coupled to the holder to rotate about the second hinge axis. The method according to claim 2, And a leaf spring assembly for closely contacting an end portion of the second hinge shaft to a guide surface constituting an outer surface of the holder. The method according to claim 6, The leaf spring assembly, At least a pair of third stopper grooves formed on the guide surface of the holder; And And a leaf spring having a projection on one side that selectively engages with the third stopper grooves while pressing the guide surface, And the protrusion engages with one of the third stopper grooves when the second housing is opened by rotating about the second hinge axis in a state where the second housing is in contact with the first housing. The method of claim 7, The leaf spring assembly, And a fourth stopper groove formed on the guide surface of the holder and engaged with the projection of the leaf spring when the second housing is folded to the first housing. The method according to claim 2, A first stopper protrusion formed at one end of the first hinge housing; And And a second stopper protrusion protruding from an outer circumferential surface of the second hinge housing, Wherein the second stopper protrusion interferes with the first stopper protrusion to stop the rotation of the second housing when the second housing rotates about the first hinge axis and is away from the first housing. Hinge device. The method according to claim 2, A first hinge cam fixed in the first hinge housing; A second hinge cam installed in the second hinge housing to enable linear movement only and facing the first hinge cam; And And an elastic member accommodated in the second hinge housing and providing an elastic force acting in the direction in which the second hinge cam is in close contact with the first hinge cam. The method according to claim 10, And the first hinge shaft sequentially passes through the elastic member, the second hinge cam, and the first hinge cam, and an end thereof is fixed to the first hinge housing. Rotatably rotating the first housing and the second housing while providing a first housing, a second housing rotatably coupled to the first housing to open and close, and first and second hinge axes extending in a vertical direction to each other; In a portable terminal having a two-axis hinge device for coupling, The biaxial hinge device is a portable terminal having a biaxial hinge device according to any one of claims 1 to 11.
KR1020090062603A 2009-07-09 2009-07-09 2-axis hinge apparatus and portable terminal having it KR20110005077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090062603A KR20110005077A (en) 2009-07-09 2009-07-09 2-axis hinge apparatus and portable terminal having it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090062603A KR20110005077A (en) 2009-07-09 2009-07-09 2-axis hinge apparatus and portable terminal having it

Publications (1)

Publication Number Publication Date
KR20110005077A true KR20110005077A (en) 2011-01-17

Family

ID=43612370

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090062603A KR20110005077A (en) 2009-07-09 2009-07-09 2-axis hinge apparatus and portable terminal having it

Country Status (1)

Country Link
KR (1) KR20110005077A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014193080A1 (en) * 2013-05-28 2014-12-04 삼성테크윈 주식회사 Method and device for removing haze in single image
US11987945B2 (en) * 2018-07-23 2024-05-21 William Ernest TARAPASKI Rods and assemblies of rods for the collection and transportation of water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014193080A1 (en) * 2013-05-28 2014-12-04 삼성테크윈 주식회사 Method and device for removing haze in single image
US11987945B2 (en) * 2018-07-23 2024-05-21 William Ernest TARAPASKI Rods and assemblies of rods for the collection and transportation of water

Similar Documents

Publication Publication Date Title
KR200439610Y1 (en) Hinge Type Cover Opening and Closing Device for Mobile Phone
JP3732619B2 (en) Hinge device
US7522946B2 (en) Hinge apparatus for mobile communication terminals
EP1758343A2 (en) Hinge device for portable terminal and portable terminal having the same
JP2007113686A (en) Mobile terminal and hinge mechanism
KR20050097455A (en) Hinge apparatus for swing type portable terminal
JP5932280B2 (en) Snap hinge device for folder type mobile terminal
EP1773030A2 (en) Foldable portable terminal with a hinge which allows several angle positions of the two housings
EP1755318B1 (en) Hinge device for portable terminal
KR100493102B1 (en) Hinge device for portable terminal with sub housing stopper
KR100630075B1 (en) Swing hinge device for mobile phone
KR20110034189A (en) Hinge apparatus for mobile phone
KR20120059737A (en) Swivel hinge apparatus for electronic device
US8588858B2 (en) Portable terminal with dual hinge axes
KR20110012203A (en) Portable terminal with hinge apparatus
KR20050039579A (en) Hinge for a portable terminal
KR20110005077A (en) 2-axis hinge apparatus and portable terminal having it
KR100791266B1 (en) Hinge Type Cover Opening and Closing Device for Mobile Phone
KR101023495B1 (en) Hinge device for mobile phone of folding type
KR20100001154A (en) Hinge type cover opening and closing device for mobile phone
KR100856221B1 (en) Portable terminal with hinge apparatus
KR100979249B1 (en) Elastic module using integrate-type spring wound on both directions by spiral form, and slide apparatus of sliding type cellular phone having the elastic module
US7657027B2 (en) Portable terminal with hinge apparatus
KR20060095310A (en) Semi-auto swing module and mobile phone with semi-auto swing module
KR20120009963A (en) 2-axis hinge apparatus and portable terminal having it

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination