KR100534536B1 - Hinge device - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device, and more particularly, to a hinge device for connecting the two members in a device (for example, a cellular phone) having two members coupled to fold or unfold. According to the present invention, there is provided a hinge device that connects a first unit to a second unit that rotates with respect to the first unit, comprising: a first rotating member coupled to rotate together with the first unit, and rotating together with the second unit A second rotation member coupled to the first rotation member, a first linear movement portion linearly moving along the rotation axis of the first rotation member, but not rotating, and linearly moving along the rotation axis of the second rotation member but not rotating A first elastic member which pushes the first linear moving part toward the first rotating member such that a second linear moving part, the first linear moving part and the first rotating member come into close contact with each other, the second linear moving part and the A second elastic member that pushes the first linear moving part toward the second rotating member so that the second rotating member is in close contact with the second rotating member, the first and second rotating members, the first and second linear moving parts, and the second 1, case housing the second elastic member The hinge device comprising is provided.

Description

Hinge device {HINGE DEVICE}

TECHNICAL FIELD The present invention relates to a hinge device, and more particularly, to a hinge device connecting two units in a device (eg, a mobile phone, a PDA, a portable computer, etc.) having two units coupled to each other so as to be folded or unfolded. .

A portable device such as a clamshell mobile phone has two case units coupled by a hinge device. One unit is provided with a keypad provided with a button, and the other unit is usually provided with a liquid crystal display device. When using the phone, extend it to expose the keypad and the liquid crystal display. The hinge unit combines the two case units and at the same time allows the two units to fold and unfold smoothly.

The structure of a normal hinge apparatus is as follows. The hinge device includes a rotating member, a linear moving member, an elastic member, and a housing. The housing accommodates the rotating member, the linear moving member, and the elastic member. The rotating member may rotate about a rotation axis within the housing, and a portion including the rotation shaft may protrude out of the housing to form a coupling portion. The linear moving member is in contact with the rotating member but does not rotate in the housing and linearly moves along the rotation axis of the housing. The elastic member exerts a force such that the linear member and the rotary member are in close contact with each other in the housing. At this time, by appropriately shaping the surface of the linear moving member and the contact with the rotating member, the rotating member is easily rotated in some sections without the external force, so as to maintain a well stopped state at a predetermined position.

One of the two case units of the mobile phone to be connected to the hinge device configured as described above is fixed to the housing and the other is fixed to the engaging portion of the rotating member. The two units thus connected are not rotated with each other in the expanded or closed state by the action of the hinge device. In order to close or unfold the two members in the unfolded or closed state, an external force must first be applied to the two members by hand. In later sections, the two units are usually configured to close or unfold automatically.

However, in the hinge device of the above-described configuration, it is difficult for the folding cellular phone to unfold the two case units up to 180 degrees, and even if possible, the two units are not placed on the same surface or a protrusion occurs due to the hinge configuration.

It is an object of the present invention to provide a hinge device that connects two units so that the two case units of the folding cellular phone are deployed to 180 degrees. Another object of the present invention is to provide a hinge device that allows two units to be placed on the same surface when two unfolded case units of a folding cellular phone are deployed at 180 degrees. Another object of the present invention is to provide a hinge device in which two shafts protrude and two members are coupled to each shaft. Still another object of the present invention is to provide a hinge device that allows two unfolding case units of a folding cellular phone to be unfolded up to 360 degrees.

According to an aspect of the present invention, a hinge device for connecting a first unit that rotates about a first axis of rotation and a second unit that rotates about a second axis of rotation parallel to the first axis of rotation, the first device A first rotating member coupled to the first unit and rotating together about the first rotation axis, a second rotating member coupled to the second rotating unit and rotating together about the second rotation axis, and the first A first linear moving member in contact with and interacting with the rotating member, a second linear moving member in contact with and interacting with the second rotating member, and a force toward which the first linear moving member and the first rotating member are in close contact with each other A first elastic member for applying a force, a second elastic member for applying a force toward the contact between the second linear member and the second rotary member, and the first and second rotary members and the first and second linear members Member and the first and second elastic members. There is provided a hinge device including a case for receiving.

delete

delete

delete

The first linear member may be linearly moved along the first axis of rotation, and the second linear member may be linearly moved along the second axis of rotation.

delete

delete

delete

delete

One of the first rotating member and the first linear moving member includes a first cam portion, and the other includes a first cam follower that interacts with the first cam portion, and the second rotating member and the second linear moving member. One of the members may have a second cam portion and the other may have a second cam follower that interacts with the second cam portion.

The first rotating member and the second rotating member may include gears engaged with each other to rotate together, and the first cam portion and the second cam portion may have the same shape.

The first cam portion and the second cam portion may include a rising slope, a falling slope, a first insertion groove into which the cam follower can be inserted, a horizontal plane, and a second insertion groove into which the cam follower can be inserted. Can be.

The first cam portion and the second cam portion include a rising slope surface, a first horizontal surface, a first insertion groove into which the cam follower can be inserted, a second horizontal surface, and a second insertion groove into which the cam follower can be inserted. It can be provided in turn.

The first linear moving member and the second linear moving member may be integrally formed.

The first cam portion includes a first fixing groove into which the first cam follower can be inserted, and the second cam portion includes a second fixing groove into which the second cam follower can be inserted. The first rotating member stops when inserted into the first fixing groove, and the second rotating member is rotatable. When the second cam follower is inserted into the second fixing groove, the second rotating member stops and the The first rotating member may be rotatable.

The first cam portion may include the first fixing groove and the horizontal surface in order, and the stop portion may be provided on the outer side of the first fixing groove and the outer side of the horizontal surface to stop the progression of the first cam follower.

The second cam portion may be provided with a rising slope and a horizontal surface, and the stop portion for blocking the progress of the second fixing groove and the second cam follower in order.

The second cam portion may be provided with a stopping portion for preventing the rising slope and the falling slope and the second fixing groove and the second cam follower in order.

The horizontal surface of the first cam portion may be provided with one or more relatively shallow stop grooves than the first and second fixing grooves.

One of the first rotating member and the first linear moving member includes a first protrusion protruding from the other and a first trajectory into which the first protrusion and the first protrusion are inserted to move along the first protrusion. A groove having a groove, one of the second rotating member and the second linear moving member having a protruding second protrusion, and the other having a second track and the second protrusion provided to move along the second protrusion. It may have a second groove that can be.

The first rotating member and the second rotating member may include gears engaged with each other to rotate together, and the first groove and the second groove may be positioned to simultaneously insert the first protrusion and the second protrusion.

Through holes are provided in the first and second linear members, and the first and second rotary members are provided with extension bars extending in the first and second rotation axis directions, and the first and second linear members are moved. The member may be fitted with the first and second linear members and the first and second elastic members to the extension rod.

The extension rod may be connected to the first and second units on the outside through opposite ends of the case.

The case may be provided with a passage through which the circuit line can be inserted such that a portion of the circuit line connected between the first member and the second member is accommodated in the case.

The passage may be provided at an end opposite to one end of a case in which the first and second rotating members are connected to the first and second units.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a perspective view of a folding type portable telephone equipped with a hinge device according to a first embodiment of the present invention. Referring to Fig. 1, the cellular phone 5 has a first unit 7 provided with a keypad and a second unit 9 provided with a liquid crystal display. The first unit 7 and the second unit 9 are rotatably coupled by the hinge device 10.

2 to 8 are diagrams of an embodiment of the hinge device having two axes shown in FIG. In this embodiment, the two axes operate in conjunction. 2 to 7, the hinge device 10 includes a case 20, first and second rotating members 30 and 40, a linear moving member 50, and first and second elastic members. 98, 99, the support plate 100, and the case cover 24 are provided.

1 to 4, the case 20 includes first and second end walls 21 and 22 and sidewalls 23 connecting the first and second end walls 21 and 22. . The opening which is not covered by the side wall 23 is closed by the case cover 24. By combining the case 20 and the cover 24, passage holes 201 are provided at both sides (only one side is shown in Fig. 2A). This passage hole 201 leads to a second chamber 27 described later in the case 20. An electrical connection circuit line (preferably a flexible printed cable) that connects the first unit 7 and the second unit 9 of the cellular phone 5 to the passage hole 201 passes. Two through holes 211 and 212 are provided in the first end wall 21. The second end wall 22 is provided with cylindrical first and second coupling pillars 221 and 222 projecting outward at positions corresponding to the two through holes 211 and 212 formed in the first end wall 21. do. Although not shown in detail, the first coupling pillar 221 and the second coupling pillar 222 may include a first unit (7 in FIG. 1) and a second unit (9 in FIG. 1) of the cellular phone (5 in FIG. 1). It is inserted into each of the coupling holes provided in the and rotates freely. The first rotation axis 100 passes through the center of the first coupling pillar 221 and the center of the first rotation member 30 to be described later. The first unit 7 of the cellular phone 5 rotates about the hinge device 10 about the first axis of rotation 100. The second rotation axis 110 passes through the center of the second coupling column 222 and the center of the second rotation member 40 to be described later. The second unit 9 of the cellular phone 5 rotates about the hinge device 10 about the second axis of rotation 110.

3 and 4, in the case 20, a supporting wall 25 is provided in the middle between the two end walls 21 and 22, which are arranged in parallel with them. The support wall 25 is provided with passages 251 and 252 formed in a U-shape at positions corresponding to the two through holes 211 and 212 formed in the first end wall 21, respectively. The interior of the case 20 is divided into the first chamber 26 on the first end wall 21 side and the second chamber 27 on the second end wall 22 side by the support wall 25. The first and second rotating members 30 and 40, the linear moving member 50, the first and second elastic members 98 and 99, and the support plate 100, which will be described later, are provided in the first chamber 26. Are accepted.

3, 4, and 6, the first and second rotating members 30 and 40 have a long columnar shape passing between the first end wall 21 and the support wall 25 of the case 20. The two rotating members 30 and 40 have the same or symmetrical shape, and the first and second rotating members 30 and 40 respectively include the first and second gear parts 32 and 42 and the first and second parts. Coupling portions 34 and 44, first and second cam followers, and first and second extension rods 38 are provided. In detail, only the second rotating member 40 will be described. A gear 41 is formed on an outer circumferential surface of the second gear part 42, and meshes with the gear 31 of the first gear part 32 so as to interlock to rotate in opposite directions. One end surface of the second gear portion 42 is in contact with the first end wall 21 in the first seal 26 of the case 20. The second coupling part 44 is provided with a key plane 43, which extends from the second gear part 42 to protrude out of the case 20 through the through hole 212 of the first end wall 21. . Although not shown in detail, the first coupling part 34 of the first rotating member 30 and the second coupling part 44 of the second rotating member 40 are the first units of the mobile phone (5 of FIG. 1). It is engaged with the coupling holes formed in (7 in FIG. 1) and the second unit (9 in FIG. 1) and rotates with these units. The second extension rod 48 extends from the second gear portion 42 to the support wall 25 of the case 20 so that its end is fitted into the passage 252. The second cam follower has two cam followers 46 arranged at 180 degree intervals. Two cam driven protrusions 46 are provided with the second extension rod 48 therebetween from the second gear portion 42.

3, 4, and 5, the linear movement member 50 includes a base plate 52 and first and second cam portions 54 and 56 formed on the base plate 52. As shown in FIG. Through-holes 541 and 561 are provided in the centers of the first and second cam portions 54 and 56, respectively. Through these through holes 541 and 561, the linear moving member 50 is fitted into the extension rods 38 and 48 of the first and second rotating members 30 and 40. The first and second cam portions 54 and 56 interact with the cam driven protrusions 36 and 46 of the first and second rotating members 30 and 40, respectively.

The shape of the cam surface 55 of the first cam portion 54 and the shape of the cam surface 57 of the second cam portion 56 are symmetrical with respect to the center line between the two, one of the cam surface 55 of the first cam portion 54. The shape profile corresponding to cam follower 36 of is shown in FIG. 7 with an exemplary angle. The cam profile shown in FIG. 7 appears twice in the first cam portion 54 at 180 degree intervals. Referring to FIG. 7, the cam surface 55 includes a rising slope 551, a falling slope 552, a first insertion groove 553, a horizontal surface 554, and a second insertion groove 555 in order. do. After the second insertion groove 555, the cam follower 36 is blocked by a high wall so that it cannot go out further. The cam follower 36 moves between the second groove 555 and one place (P1 position) on the rising slope 551.

3 and 4, the first and second elastic members 98 and 99 are compression coil springs, and the first and second extension bars 38 of the first and second rotating members 30 and 40 are respectively. , 48) respectively. One side of the first and second elastic members 98 and 99 is in contact with the linear moving member 50 and the other side is in contact with the support plate 100 to be described later and pushes the linear moving member 50 toward the cam driven protrusions 36 and 48. .

3 and 4, the support plate 100 is accommodated in the first chamber 26 of the case 20 to be in contact with the support wall 25. The support plate 100 is in contact with one ends of the first and second elastic members 98 and 99. The support plate 100 is provided with two passages 101 and 102 to pass the first and second extension rods 38 and 48 of the first and second rotating members 30 and 40. The support plate 100 facilitates assembly by easily compressing the first and second elastic members 98 and 99 during assembly.

Now, the operation of this embodiment will be described with reference to FIGS. As shown in FIG. 2, the first rotating member 30 and the second rotating member 40 are connected to the gears 31 and 41, respectively, and rotate at the same angle in opposite directions. FIG. 8 corresponds to when the cam follower 36 of the first cam follower is placed at each position P1, P2, P3, P4 on the cam face 55 of the first cam section 54 shown in FIG. The position of the second unit 9 of the cellular phone 5 is shown. Although not shown, the action of the second cam portion 56 and the second cam follower cam follower 46 is the same as that of the first cam portion 54 and the first cam follower shown in FIG. The angle shown in FIG. 8 for the same position is twice the angle shown in FIG. This represents the angle of rotation of the first rotating member 30 connected to the first member 7 of the cellular phone 5, while the second unit (1) relative to the first unit 7 shown in FIG. This is because the rotation angle of 9) is the sum of the rotation angles of the first rotation member 30 and the second rotation member 40.

7 and 8, the position of P1 is a state where the second member 9 is completely folded. Since the cam follower 36 lies on the rising inclined surface 36, the mobile phone 5 is forced to keep the folded state. P1 to P2 are sections in which the first unit 7 of the mobile phone 5 rotates from 0 degrees to 15 degrees with respect to the hinge device 10, in which the cam follower 36 and the rising slope 551 are formed. It is forced to be folded automatically by the interaction of. At this time, the angle between the first unit 7 and the second unit 9 of the cellular phone 5 is from 0 degrees to 30 degrees. Between P2 and P3 is a section in which the first unit 7 of the cellular phone 5 rotates from 15 degrees to 65 degrees with respect to the hinge device 10, in which the cam follower 36 and the descending slope 552 ) Is forced to unfold automatically. At this time, the angle between the first unit 7 and the second unit 9 of the cellular phone 5 is from 30 degrees to 130 degrees. At the P3 position, the cam follower 36 is inserted into the first insertion groove 553 and stops. At any position between P3 and P4, it is a section in which the second unit 9 is forced to stop. P4 is a position where the first unit 7 of the cellular phone 5 is rotated 90 degrees with respect to the hinge device 10. At the P4 position, the cam follower 36 is inserted into the second insertion groove 555 to stop. 3 shows this state.

Differently from Fig. 7, the cam surface may be shaped as shown in Fig. 9 (for example, an angle is indicated). That is, the cam surface 58 includes a rising inclined surface 581, a first horizontal surface 582, a first insertion groove 583, a second horizontal surface 584, and a second insertion groove 585. . After the second insertion groove 585, the cam follower 36 is blocked by a high wall so that it cannot go further. When the cam follower 36 is placed at the position of P1, the cellular phone remains fully folded. When the cam follower 36 is placed at the P4 position, that is, the second insertion groove 585, the cellular phone is fixed in a 180 degree unfolded state (P4 state in FIG. 8). When the cam follower 36 is placed in the P3 position, that is, the first insertion groove 583, the angle between the two units of the cellular phone is 130 degrees and is in the P3 state of FIG. When the cam follower 36 is located on the first and second horizontal planes 582 and 584, the cellular phone is at a standstill at any position. 7 and 9 illustrate that the first insertion grooves 553 and 583 are located at 65 degrees, but the present invention is not limited thereto. The first insertion grooves 553 and 583 may be positioned to be provided on different angles. In this case, the angle at which the second unit is unfolded (the angle at the position P3 in FIG. 8) is changed.

In the above embodiment, the angle of operation of the hinge device has been described by way of example, but the present invention is not limited thereto. The angle of action can be set differently.

10 to 17 are diagrams of a hinge device according to a second embodiment in which two axes of the present invention operate alone. The hinge device 10b includes a case 20b, first and second rotating members 30b and 40b, first and second linear moving members 60b and 70b, and first and second elastic members 98b. 99b, first and second support plates 110b and 120b, and a case cover 24b.

The case 20b is similar to the case 20 of the first embodiment, except that the separating wall 29b is formed by connecting the support wall 25b and the first end wall 21b to the first chamber 26b. ) Is different. The first chamber 26b is divided in half by the dividing wall 29b and divided into a first A chamber 261b and a first B chamber 262b. The 1st rotation member 30b mentioned later, the 1st linear movement member 60b, the 1st elastic member 98b, and the 1st support plate 110b are accommodated in the 1A seal 261b. The 1st B chamber 262b accommodates the 2nd rotating member 40b mentioned later, the 2nd linear moving member 70b, the 2nd elastic member 99b, and the 2nd support plate 120b. The first rotating member 30b and the second rotating member 40b rotate about the first and second rotation axes 100 and 110, respectively.

The first and second rotating members 30b and 40b each have a long passage passing between the first end wall 21b and the support wall 25b in the first A seal 261b and the first B seal 262b of the case 20b. It is columnar. The first and second rotating members 30b and 40b have base portions 32b and 42b, coupling portions 34b and 44b, cam followers and extension rods 38b and 48b, respectively. Since the first rotating member 30b and the second rotating member 40b have the same shape, only the first rotating member 30b will be described in detail. The base part 32b is disk-shaped, and one end surface is in contact with the 1st end wall 21b of the 1st A seal 261b of the case 20b. The engaging portion 34b has a rectangular pillar shape and extends from the base portion 32b to protrude out of the case 20b through the through hole 211b of the first end wall 21b. Although not shown in detail, the engaging portion 34b of the first rotating member 30b and the engaging portion 44b of the second rotating member 40b are formed in the first unit (see FIG. 1 of FIG. 1). 7) and the coupling holes formed in the second unit (9 in Fig. 1) are respectively rotated together. The extension rod 38b extends from the base portion 32b to the support wall 25b of the case 20b so that its end is fitted into the passage 251b. The cam follower is provided with two cam followers 36b arranged at intervals of 180 degrees. Two cam driven protrusions 36b are provided with the extension rod 38b therebetween from the base portion 32b.

Through-holes 62b and 72b are provided in the central portions of the first and second linear movement members 60b and 70b, respectively, and the through-holes 62b and 72b respectively correspond to the first and second rotation members 30b and 40b. Extension rods 38b and 48b are fitted. The first and second linear moving members 60b and 70b form cam portions 64b and 74b on the surfaces facing the cam driven protrusions 36b and 46b of the first and second rotating members 30b and 40b, respectively. . The cam follower 36b of the first rotary member 30b interacts with the cam portion 64b of the first linearly movable member 60b, and the cam follower 46b of the second rotary member 40b is second. It interacts with the cam portion 74b of the linear movement member 70b. The cam profiles of the cam portion 64b of the first linear movement member 60b and the cam portion 74b of the second linear movement member 70b are shown in Figs. 15A and 15B, respectively.

Referring to Fig. 15, the cam portion 64b of the first linear moving member is sequentially formed with a fixed groove 641b (a groove deeper than a stationary groove described later), a first horizontal surface 642b, and a first stop groove ( 643b, a second horizontal surface 644b, and a second stop groove 645b. Outside the fixing groove 641b and the second stop groove 645b, the cam follower 36b of the first rotating member is blocked by a high wall so as not to go out further. The cam follower 36b of the first rotating member moves between the first fixing groove 641b and the second stop groove 645b. The cam profile shown in Fig. 15 (a) is repeatedly arranged at 180 degree intervals in the first linear moving member.

Referring to Fig. 15B, the cam portion 74b of the second linear moving member, in turn, includes a rising slope 741b, a horizontal surface 742b, and a fixing groove 743b (relatively deep groove). At this time, the fixing groove 743b is deeper than the first and second stop grooves 642b and 643b provided in the cam portion 64b of the first linear moving member. After the fixing groove 743b, the cam follower 46b of the second rotating member is blocked by a high wall so that it cannot go out anymore. The cam follower 46b of the second rotating member moves between one position (C4 position) and the fixing groove 743b on the rising inclined surface 741b.

10 and 11, the first and second elastic members 98b and 99b are fitted to the first and second extension rods 38b and 48b of the first and second rotating members 30b and 40b, respectively. Lose. One side of the first and second elastic members 98b and 99b is in contact with the first and second linear movable members 60b and 70b, respectively, and the other side is in contact with the first and second supporting plates 110b and 120b to be described later. The first and second linear moving members 60b and 70b are pushed toward the cam driven protrusions 36b and 46b of the first and second rotating members 30b and 40b.

The first and second support plates 110b and 120b have the same shape and are accommodated in the 1A chamber 261b and the 1B chamber 262b of the case 20b, respectively, so as to be in contact with the support wall 25b. The first and second support plates 110b and 120b contact one ends of the first and second elastic members 98b and 99b, respectively. Passages 111b and 112b are provided in the two support plates 110b and 120b, respectively, so that the first and second extension rods 38b and 48b of the first and second rotating members 30b and 40b pass.

FIG. 16 shows each cam follower protrusion at each position C1, C2, C3, C4, C5, C6 on the first and second cam portions 64b, 74b of the first and second linear moving members shown in FIG. The positions of the second unit 9 of the cellular phone 5 are shown when 36b and 46b are placed. 15 and 16, the position of P1 is a state where the second unit 9 is completely folded. At this time, the cam follower 36b of the first rotating member and the cam follower 46b of the second rotating member are located at C1 and C4, respectively. In this state, when the second unit 9 of the cellular phone 5 is unfolded, the cam follower 36b of the first rotating member is fixed to the fixing groove 641b and does not move but the cam follower of the second rotating member ( 46b) climbs up the rising slope 741b. When the cam follower 46b of the second rotating member is located at C5, the second unit 9 is located at P2 in FIG. When the second unit 9 is further opened, the cam follower 46b of the second rotating member moves to C6 while the cam follower 36b of the first rotating member is fixed. This is the state where the second unit 9 is located at P3 in FIG. Here, when the second unit 9 of the mobile phone 5 is further opened, the cam follower 46b of the second rotating member cannot move further and the cam follower 36b of the first rotating member is fixed groove 641b. ) To C2. This is the state where the second unit 9 is located at P4 in FIG. Here, when the second unit 9 of the cellular phone 5 is further opened, the cam follower 36b of the first rotating member moves to C3 and is fixed. In this case, in FIG. 16, the second unit 9 is located at P5 and is extended at 180 degrees. The cam follower 46b of the second rotary member is located on the horizontal surface 742b of the cam portion 74b of the second linearly movable member, or the cam follower 36b of the first rotary member is the cam portion of the first linearly movable member. If it is located in the 1st, 2nd horizontal surface 642b, 644b of 64b, the 2nd unit 9 will remain stationary in arbitrary positions.

When the second unit 9 is folded, the cam follower 46b of the second rotating member 40b is inserted into the fixing groove 743b, so that the first linear moving member 60b and the first rotating member 30b are separated. The action of is made first, and then the action between the second linear moving member 70b and the second rotating member 40b is followed.

Differently from Fig. 15A, the cam portion of the second linear moving member may be shaped as shown in Fig. 17 (perspective view in Fig. 14). That is, the cam part 74c of the 2nd linear movement member is provided with the rising inclined surface 741c, the falling inclined surface 742c, and the fixing groove 743c in order. After the fixing groove 743c, the cam follower 46b is blocked by a high wall so that it cannot go further. The cam follower 46b moves between a position on the rising inclined surface 741c and the fixing groove 743c.

In the above embodiment, a coupling part (that is, a dummy rotary shaft) is formed on the end wall of the case to be combined with the first and second units of the mobile phone to allow free rotation. However, the present invention is not limited thereto. Instead of such a coupling part (dummy rotating shaft), a hole penetrating the end wall is provided, and the extension rods of the first and second rotating members are extended through the hole, and the ends thereof are coupled with the first and second members of the mobile phone. You can also

18 to 20 are views of a hinge device according to a third embodiment of the present invention. Referring to FIGS. 18 and 19, the hinge device 10c includes a case 20c and first and second rotating members ( 30c, 40c, linear moving member 50c, first and second elastic members 98c and 99c, support plate 100c, first and second coupling rods 96c and 97c, and case cover 24c is provided. The case 20c has the same shape except that the case 20c has through holes 223 and 224 instead of the coupling pillars 221 and 222 as compared to the case 20 shown in FIG. Each of the coupling parts 961 and 971 of the first and second coupling bars 96c and 97c to be described later protrudes out of the case through the two through holes 223 and 224.

The first rotating member 30c and the second rotating member 40c are symmetrical and have the same shape. The first rotating member 30c and the second rotating member 40c include first and second gear parts 32c and 42c having gears engaged with each other. Both first and second gear portions 32c and 42c are provided with quadrangular pillar-shaped coupling portions 34c and 44c and extension rods 38c and 48c, respectively. The two gear parts 32c and 42c are provided with two hemispherical protrusions 36c and 46c at intervals of 180 degrees, and coupling grooves 381 and 481 are provided at ends of the extension rods 38c and 48c. Ends of the coupling rods 96c and 97c described later are connected to the coupling grooves 381 and 481.

The linear moving member 50c is provided with circular tracks 52c through which the projections 36c and 46c move and fitting grooves 51c and 53c formed in the middle of the track. The grooves 51c and 53c have a pair of grooves 53c formed on the left and right and a pair of grooves 51c formed up and down. When the projections 36c and 46c are inserted into the pair of grooves 53c formed at the left and right sides, the two case units of the cellular phone are fixed in the unfolded state at 180 degrees (state shown in Fig. 19). In this state, when the mobile phone is inserted into the groove 51c which is rotated in one direction and formed up and down, the mobile phone is fixed in the closed state and when the mobile phone is inserted in the groove 51c which is rotated in the opposite direction, the mobile phone is fixed in an unfolded state by 360 degrees. If you can understand. When the projections 36c and 46c come out of the grooves 51c and 53c, the stop state can be maintained at any position. In addition to the grooves shown in Fig. 20, a plurality of grooves may be formed on the track 52c at necessary positions in the circumferential direction.

The two coupling rods 96c and 97c are provided with coupling portions 961 and 971 and extension portions 962 and 972 having a rectangular pillar shape. Stop plates 969 and 979 are provided between the engaging portions 961 and 971 and the extending portions 962 and 972 so as not to fall out of the holes 223 and 224 of the end wall of the case 20c. Protruding ends 963 and 973 are provided at the extension end. The protruding ends 963 and 973 are inserted into the coupling grooves 381 and 481 of the extension rods 38c and 48c of the rotating members 30c and 40c to extend the extension rods 38c and 48c and the coupling rods 96c and 97c. Let's rotate together. This can be said that the extension rods 38c and 48c extend beyond the other end wall of the case 20c and engage with the first and second units 7 and 9. The other configuration is the same as that of the first embodiment, so detailed description thereof will be omitted. In the hinge device of the present embodiment, the projections 36c and 46c, the track 52c, and the grooves 51c and 53c provide a so-called free-stop hinge characteristic, and two units connected to the hinge device can be unfolded up to 360 degrees. It will be understood by those skilled in the art.

On the other hand, in the first and second embodiments, a passage is formed on the side of the housing so that the connector between the first unit 7 and the second unit 9 passes through the passage. However, the present invention is not limited thereto.

Figure 21 shows the hinge device according to the fourth embodiment of the present invention with the cover removed. Referring to Fig. 21, a passage 225d formed in the second end wall 21d is provided to connect between two through holes 223d and 224d of the hinge device 10d, and the coupling rods (96c and 97c in Fig. 18) are provided. The configuration is the same as that of the third embodiment shown in FIG.

21 and 22, a flexible printed cable 300d, which is an electrical connection circuit line, is used between the two units 7d and 9d. 9d) extends to approach hinge 10d and extends to the hinge 10d and is connected to the original direction. The middle portion 301d, which is bent toward the hinge, is inserted through the two through holes 223c and 224c and the passage 225d to be received in the second chamber 27d of the case 20d. 21 and 22, one side of the flexible cable 300d extends and is connected to the first unit 7d of the cellular phone 5d, and the other side extends and is connected to the second unit 9d. Since the center portion 301d of the flexible cable 300d is housed in the inside of the hinge device 10d (the second chamber 27d) so that the center portion 301d of the flexible cable 300d is not exposed to the outside, the flexible cable 300d is more securely secured to the mobile phone 5d. The first unit 7d and the second unit 9d are connected. Although not shown in detail, the first unit 7d and the second unit 9d have coupling protrusions rotatably inserted into the two through holes 223d and 224d of the hinge device 10d, respectively. . Although not shown in detail, it will be understood by those skilled in the art from the above description that the coupling protrusion is configured such that the flexible cable 300d passes through and the flexible cable can be held well in the protrusion.

By using the hinge device according to the configuration of the present invention, the folding cellular phone can be extended to 180 degrees. In addition, the unfolded shape may be a form of a general bar type telephone having no protrusion or two members in the middle. In this hinge, having the same components as the above embodiment can provide various operating characteristics. It can also provide flexible circuit connection.

Although the present invention has been described with reference to the above embodiments, the present invention is not limited thereto. Those skilled in the art will appreciate that modifications and variations can be made without departing from the spirit and scope of the present invention and that such modifications and variations also fall within the present invention.

1 is a perspective view of a mobile phone equipped with a hinge device according to a first embodiment of the present invention;

Figures 2 (a) and (b) are perspective views of the hinge device of Figure 1

Figure 3 is a perspective view showing the inside of the hinge device by removing the case cover from the hinge device of Figure 2

4 is an exploded perspective view of the hinge device of FIG.

5 is a perspective view of the linear movement member of FIG.

6 is a perspective view of the second rotating member of FIG.

7 is a developed view showing the cam surface shape of the linear movement member of FIG.

FIG. 8 is a side view showing an expanded and folded state of the mobile phone of FIG. 1

FIG. 9 is an exploded view showing the cam surface shape of the linear movement member as another embodiment of the linear movement member provided in the hinge apparatus of FIG.

10 is a perspective view of a hinge device according to a second embodiment of the present invention, in which the case cover is removed to show the inside of the hinge device;

Figure 11 is an exploded perspective view of the hinge device of Figure 10

12 is a perspective view of the first linear moving member of FIG.

FIG. 13 is a perspective view of the second linear moving member of FIG.

14 is a perspective view showing another embodiment of the second linear moving member of FIG.

FIG. 15A is a developed view showing the cam surface shape of the first linearly movable member of FIG. 12, and (b) is a developed view showing the cam surface shape of the second linearly movable member of FIG.

FIG. 16 is a side view showing an extended and folded state of the mobile phone equipped with the hinge device of FIG. 10; FIG.

17 is an exploded view showing the cam surface shape of the linearly movable member of FIG.

18 is a perspective view of a hinge device according to a third embodiment of the present invention, in which a case cover is removed to show the inside of the hinge device;

Figure 19 is an exploded perspective view of the hinge device of Figure 18

20 is a perspective view of the linearly moving member of FIG.

Figure 21 is a perspective view of a hinge device according to a fourth embodiment of the present invention, showing the inside of the hinge device with the cover removed.

Fig. 22 is a perspective view showing a state in which the hinge device of Fig. 21 is mounted on the cellular phone;

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

10: hinge device 20: case

30: first rotating member 40: second rotating member

60b: first linear member 70b: second linear member

98: first elastic member 99: second elastic member

Claims (19)

A hinge device that connects a first unit that rotates about a first rotational axis and a second unit that rotates about a second rotational axis parallel to the first rotational axis, A first rotating member coupled to the first unit to rotate together around the first rotation axis; A second rotating member coupled to the second rotating unit and rotating together around the second rotating axis; A first linear moving member in contact with and interacting with the first rotating member; A second linear moving member contacting and interacting with the second rotating member; A first elastic member for applying a force toward the first linear moving member and the first rotating member to closely contact each other; A second elastic member for applying a force toward the second linear moving member and the second rotary member to closely contact each other; And a case accommodating the first and second rotating members, the first and second linear moving members, and the first and second elastic members. The hinge device of claim 1, wherein the first linear member is linearly movable along the first axis of rotation, and the second linear member is linearly movable along the second axis of rotation. The method of claim 2, wherein one of the first rotating member and the first linear moving member has a first cam portion and the other has a first cam follower to interact with the first cam portion, the second rotation Any one of the member and the second linear moving member has a second cam portion and the other has a second cam follower which interacts with the second cam portion. 4. The hinge device of claim 3, wherein the first rotating member and the second rotating member have gears engaged with each other to rotate together, wherein the first cam portion and the second cam portion have the same shape. 5. The cam according to claim 4, wherein the first cam portion and the second cam portion have a rising slope, a falling slope, a first insertion groove into which the cam follower can be inserted, a horizontal plane, and a second cam insert. Hinge device provided with an insertion groove in sequence. 5. The cam cam of claim 4, wherein the first cam portion and the second cam portion include a rising slope, a first horizontal surface, a first insertion groove into which the cam follower can be inserted, a second horizontal surface, and the cam follower. The hinge device having a second insertion groove in turn. The hinge device according to any one of claims 4 to 6, wherein the first linear moving member and the second linear moving member are integrally formed. The method of claim 3, wherein the first cam portion has a first fixing groove into which the first cam follower can be inserted, and the second cam portion has a second fixing groove into which the second cam follower can be inserted. When the first cam follower is inserted into the first fixing groove, the first rotating member is stopped and the second rotating member is rotatable. When the second cam follower is inserted into the second fixing groove, the second cam is inserted into the second fixing groove. Hinge device that the rotating member is stopped and the first rotating member is rotatable. The hinge device of claim 8, wherein the first cam part includes the first fixing groove and the horizontal surface in turn, and a stop part is provided on the outer side of the first fixing groove and on the outer side of the horizontal surface to stop the progression of the first cam follower. 10. The hinge device according to claim 9, wherein the second cam portion includes a rising slope and a horizontal surface, and a stop portion for stopping the progress of the second fixing groove and the second cam follower. 10. The hinge device according to claim 9, wherein the second cam portion includes a rising slope, a falling slope, and a stop portion which prevents the second fixing groove and the second cam follower from moving. 12. The hinge device according to any one of claims 9 to 11, wherein one or more stop grooves relatively shallower than the first and second fixing grooves are provided in the horizontal surface of the first cam portion. According to claim 2, wherein one of the first rotating member and the first linear movement member is provided with a first projection protruding and the other is a first track and the first projection provided to move along the first projection A second raceway having a first groove which can be inserted, wherein one of the second rotating member and the second linear moving member has a protruding second protrusion and the other has a second trajectory provided to move along the second protrusion; And a second groove into which the second protrusion can be inserted. The method of claim 13, wherein the first rotating member and the second rotating member has gears engaged with each other to rotate together, wherein the first groove and the second groove are positioned so that the first projection and the second projection are inserted at the same time. Hinge device. The hinge device of claim 14, wherein the first linear moving member and the second linear moving member are integrally formed. The method of claim 2, wherein the first and second linear moving members are provided with through holes, and the first and second rotating members have extension rods extending in the first and second rotation axis directions. The first and second linear movement members are hinged devices in which the first and second linear movement members and the first and second elastic members are fitted to the extension rod. The hinge device of claim 16, wherein the extension rod is connected to the first and second units at an outer side through an opposite end of the case. The hinge device of claim 2, wherein the case is provided with a passage through which the circuit line can be inserted such that a portion of the circuit line connected between the first unit and the second unit is accommodated in the case. 19. The hinge device according to claim 18, wherein the passage is provided at an opposite end of one end of the case in which the first and second rotating members are connected to the first and second units.