KR100403117B1 - Cover hinge mechanism of cellular phone - Google Patents

Abstract

The present invention is to facilitate the use of the mobile phone by automatically opening and closing the cover of the mobile phone. The present invention for this purpose, the housing unit 140 is fixed to the cover 130, the power unit 190 is installed in the housing unit 140, and installed in the housing unit 140 to the power unit 190 And a pair of fixing parts 110 which are provided on the clutch unit 160 and the main body 100 that are rotated to fix the other ends of the clutch unit 160 and the housing unit 140, respectively, and the main body 100. A cover hinge device of a mobile phone comprising a control unit for applying a driving voltage to the power unit 190 and a switch provided in the main body 100 to turn on the control unit. As the switch 220 is turned on, the geared motor 200 is turned on. By rotating the clutch unit 160 to automatically open and close the cover 130, the convenience of use of the mobile phone is increased.

Description

Cover hinge device for mobile phone {COVER HINGE MECHANISM OF CELLULAR PHONE}

The present invention relates to a cover hinge device of a mobile phone, to facilitate the use of the mobile phone by enabling the opening and closing of the cover of the mobile phone automatically.

In general, as an example of the hinge device of the flip-type mobile phone looks at the "hinging device of the flip-type mobile phone" shown in Patent Application No. 10-1998-0046799.

As shown in FIG. 1, the hinge device is rotatably connected to the main body and the flip. The hinge device is provided with a switch for switching to the call mode or the standby mode according to the opening and closing angle of the flip.

2, the hinge module M is mounted on one side of the hinge accommodating part 60, and the hinge means 10 is mounted on the other side of the hinge accommodating part 60.

As shown in an exploded perspective view in FIG. 3, the hinge module M is slid with the housing 1, the first hinge shaft 2 positioned to be inserted into the housing 1, and the first hinge shaft 2. Cam 3 for movement, a stopper 5 assembled to the housing 1 so that the first hinge shaft 2 and the cam 3 do not leave the housing 1, the cam 3 and the stopper ( It is composed of a spring (4) is provided between the 5 to provide a force to the cam (3).

The coupling shaft 21 of the first hinge shaft 2 is coupled to the coupling portion 74 of the socket 72 so as to rotate together with the opening and closing of the flip 70, and the first hinge shaft 2 According to the rotational movement, the cam 3 performs a linear reciprocating movement by sliding with the hill 22 of the first hinge shaft 2. In addition, the spring 4 is a compression or expansion movement based on the rotation center axis direction in accordance with the opening and closing of the flip 70.

The hinge means 10 comprises a second hinge shaft 6, a plate spring 7 for supporting the second hinge shaft 6, and fixing means for fixing the plate spring 7. In addition, a coupling means is added between the second hinge shaft 6 and the plate spring 7 so that both are fixed.

The second hinge shaft 6 is assembled with the coupling portion 74 of the socket 72 to serve as a hinge axis, and the plate spring 7 presses the second hinge shaft 6 in the direction of the arrow to support it.

The housing 1 is fully open on one side and partially open on the other side. The guide hole 13 extends in the longitudinal direction on the upper surface 12 of the housing, and the locking hole 15 is formed in both side surfaces 14.

The first hinge shaft 2 has a coupling shaft 21 assembled with the flip 70 on one side thereof and has a mount 22 on the other side thereof. At this time, a cylindrical engaging portion 25 having a larger diameter than the coupling shaft 21 is formed between the coupling shaft 21 and the mountain portion 22. At this time, the end of the coupling shaft 21 is provided with a fixing means. The fixing means is formed by alternating the plane 23 and the curved surface 24 is mounted to the engaging portion of the flip 70. Fixing means are assembled with the engaging portion of the flip 70 is formed to rotate together.

The cam 3 engaged with the first hinge shaft 2 is provided with a hill portion 31 and a valley portion 32 to allow sliding motion with the first hinge shaft 2, and a guide hole at the top thereof. A guide protrusion 34 moving along 13 is protruded. The cam 3 can be linearly moved by a guide means composed of a guide hole 13 and a guide protrusion 34. In addition, the cam 3 is provided with a fixing projection 33 so that one end of the spring (4) is fixed.

The cover 5 is provided with hooks 51 so as to be locked in the locking holes 15, and the hooks 51 extend in the axial direction. Guide protrusions 56 for insertion into the guide holes 13 protrude from the top surface of the stopper 5, and the hinge module M on the hinge accommodating portion 60 of the main body on the surface 52 of the stopper 5. The guide protrusion 54 protrudes so that it is fixed.

The hinge module M configured as described above rotates with the first hinge shaft 2 as the flip 70 is opened and closed. At this time, the mountain 22 and the cam 3 of the first hinge shaft 2 is in a sliding motion in close contact with each other, and then the cam 3 compresses or tensions the spring 4 while moving back and forth. Let's do it.

That is, when the flip 70 is closed, the first hinge shaft 2 and the cam 3 remain in close contact, and when the flip 70 is opened about 90 degrees, the first hinge shaft 2 and the cam are closed. The mountain parts 22 and 31 of (3) are in close contact with each other, and the spring 4 is in the most compressed state, and when the flip 70 is opened to the call angle, the spring 4 is again tensioned by the restoring force.

That is, in the closed state or the open state of the flip 70, the spring 4 maintains the most tensioned state. When the flip 70 is opened about 90 degrees, the spring 4 maintains the most compressed state.

In this way, the flip 70 can maintain the open state and the closed state with appropriate elasticity by the action of the hinge module M, respectively.

However, such a hinge device is limited to a configuration for manually opening and closing a flip, and there is a problem in that the hinge device that can automatically open and close the flip cannot be used.

The present invention has been made to solve the above problems, an object of the present invention is to facilitate the use of the mobile phone by enabling the opening and closing of the cover of the mobile phone automatically.

1 is a perspective view of an installation state showing a cover hinge device of a conventional mobile phone.

Figure 2 is a cross-sectional view of the coupling hinge of the cover hinge device shown in FIG.

3 is an exploded perspective view of the cover hinge device shown in FIG.

Figure 4 is a perspective view of the installation state of the cover hinge device according to an embodiment of the present invention.

5 is an exploded perspective view of the cover hinge device shown in FIG. 4.

6 is an enlarged perspective view of the clutch unit illustrated in FIG. 5.

7 is a cross-sectional view of the process of opening the cover shown in FIG.

8 is a sectional view of the cover shown in FIG. 4 in an open state.

9 is a cross-sectional view of the clutch unit in a state in which the cover shown in FIG. 5 is opened and closed.

10 is a cross-sectional view of the clutch portion of the process shown in Figure 5 opening and closing the cover.

<Explanation of symbols for main parts of drawing>

100: main body 110: fixed part

112: first hinge holder 114: first coupling hole

116: fixing ring 118: fixing hole

120: second hinge holder 122: second coupling hole

130: cover 132: fixed rod

140: housing portion 142: housing

144: fixed piece 146: fixed leg

148: fastening hole 150: through hole

152: stopper 154: second incision

156: guide protrusion 160: clutch portion

162: first slip plate 164: first spherical groove

166: first guide groove 170: ball

180: second slip plate 182: second spherical groove

184: second guide groove 186: shaft

190: power unit 200: geared motor

202: positioning protrusion 204: wire

220: switch

The present invention for achieving the above object, the housing is fixed to the cover; A power unit installed in the housing unit and generating a rotational force; A clutch unit rotatably installed in the housing unit, connected to the rotating shaft of the power unit, and a slip phenomenon occurs when a predetermined rotation force is applied, and a clutch unit having a shaft supported by the main body; A pair of fixing parts provided in the main body, each fixing one end of the shaft and the housing part; A control unit provided in the main body and configured to apply a driving voltage to the power unit; A cover hinge device of a mobile phone provided in the main body and having a switch for operating the control unit, wherein the clutch unit is coupled to a drive shaft of the power unit and has a pair of first spherical grooves at a position symmetrical from a center on one side thereof. A first slip plate having a first guide groove connecting the pair of first spherical grooves to each other; A second slip plate having a first spherical groove and a second spherical groove corresponding to the first guide groove and a second guide groove respectively formed on one side thereof, and the shaft being formed on the other side thereof; A pair of balls in which both sides are respectively inserted into a pair of said first spherical groove and a pair of said second spherical grooves; And a compression spring for holding the other side of the geared motor. A hinge device for a cellular phone is provided. Hereinafter, a preferred embodiment according to the present invention will be described.

Figure 4 is a perspective view of the installation state of the cover hinge device according to an embodiment of the present invention, Figure 5 is an exploded perspective view of the cover hinge device shown in Figure 4, Figure 6 is an enlarged perspective view of the clutch portion shown in FIG.

First, the configuration of this embodiment will be described.

The hinge device of the present embodiment includes a housing part 140 fixed to the cover 130; A power unit 190 installed in the housing unit 140 and generating a rotational force; A clutch rotatably installed in the housing unit 140, connected to the rotating shaft of the power unit 190, and a slip phenomenon occurs when a predetermined rotational force is applied, and a clutch having a shaft 186 supported by the main body 100 is provided. Unit 160; A pair of fixing parts 110 provided in the main body 100 and fixing one end of the shaft 186 and the housing part 140, respectively; A control unit provided in the main body 100 and applying a driving voltage to the power unit 190; A switch 220 provided in the main body 100 and operating the control unit. In the housing unit 140, a through hole 150 through which the shaft 186 passes is formed at one end surface thereof, and the other end surface thereof is formed. A pair of fixed legs 146 having an open hollow housing 142 and fastening holes 148 formed in the housing 142 and coupled to a pair of fixing rods 132 provided in the cover 130, It is coupled to the other end surface of the housing 142 has a stopper 152 rotatably supported on one side fixing portion 110.

A first cutout 151 is formed in the opening of the housing 142, and a second cutout 154 corresponding to the first cutout 151 is also formed in the stopper 152. Guide protrusions 156 on the first cutouts 151 are formed on both sides of the 154.

The power unit 190 is a geared motor 200 that rotates in the corresponding direction according to the voltage applied from the control unit and maintains the stopped state when the power is turned off. The wire connected to the geared motor 200 passes through the first cutout 151 and the second cutout 154 and is connected to the controller.

The geared motor 200 has a position fixing protrusion 202 is formed on the side, a pair of fixing pieces 144 for guiding both sides of the position fixing protrusion 202 is formed on the inner surface of the housing 142, geared When the motor 200 is inserted into the housing 142, the position thereof is fixed.

On the other hand, the clutch unit 160 is coupled to the drive shaft of the power unit 190, and connects the pair of first spherical grooves 164 and the pair of first spherical grooves 164 at positions symmetrical from the center on one side. A first slip plate 162 having a first guide groove 166 formed thereon; A second spherical groove 182 and a second guide groove 184 corresponding to the first spherical groove 164 and the first guide groove 166 are formed on one side, respectively, and the shaft 186 is formed on the other side. Second slip plate 180; A pair of balls 170 in which both sides are respectively inserted into the pair of first spherical grooves 164 and the pair of second spherical grooves 182; And a compression spring 188 holding the other side of the geared motor 200.

The fixing part 110 is formed in the main body 100 and has a first hinge holder 112 having a first coupling hole 114 and a fixing coupled to the first coupling hole 114 and to which the shaft 186 is coupled. A fixing ring 116 having a ball 118 formed therein, a second hinge holder 120 formed at the body 100 at a position opposite to the first hinge holder 112 and having a second coupling hole 122; The guide ring 124 is coupled to the second coupling hole 122 and the housing 140 is rotatably coupled.

In the cover hinge device, the pair of balls 170 is fixed to one of the first spherical grooves 164 of the first slip plate 162 and the second spherical grooves 182 of the second slip plate 180 by an adhesive. In addition, the shaft 186 of the second slip plate 180 is inserted from the open side of the housing 142 to protrude into the through hole 150 on the opposite side, and the fixing ring 116 fixed to the first hinge holder 112. The first slip plate (162) and the second slip plate (180) are usually made of plastic injection molding for mass production, and its hardness is relatively low. Therefore, by constructing the ball 170, the first slip plate 162 or the second slip plate 180 in a separate type, it is possible to manufacture the ball 170 made of metal with high hardness so that the ball 170 will not wear even after long-term use. When the cover 130 is manually opened and closed, the pushing force does not work in any direction while the ball 170 is in the first guide groove 166 or the second guide groove 184. In other words, if you leave the cover (130) at an open angle, it will stop in that state. Therefore, it is possible to arbitrarily adjust the opening angle of the cover 130.

The first spherical shape of the first slip plate 162 and the second slip plate 180 inserted into the second slip plate 180 from the open side of the housing 142 and coupled to the geared motor 200. The geared motor 200 and the first slip plate 162 are inserted into the housing 142 such that both sides of the ball 170 are simultaneously inserted into the groove 164 and the second spherical groove 182. At this time, if the position fixing protrusion 202 formed on the side of the geared motor 200 is sandwiched between the pair of fixing pieces 144 formed in the housing 142, the geared motor 200 is fixed to the housing 142.

Next, the outer side of the geared motor 200 is supported by the compression spring 188, and the stopper 152 so that the guide protrusion 156 of the stopper 152 is caught by the first cutout 151 of the housing 142. Is coupled to the housing 142 to seal off the open side of the housing 142.

The wire 204 of the geared motor 200 is drawn out and connected to the control unit through the first cutout 151 formed in the housing 142 and the second cutout 154 formed in the stopper 152, and the switch 220. ) Is also connected to the control unit, and then fixed to the main body 100 of a suitable area where the user can switch with a finger.

On the other hand, when the fastening hole 148 formed in the fixing leg 146 of the housing 142 is coupled to the fixing rod 132 of the cover 130, the housing 142 is firmly fixed to the cover 130. In addition, when the outside of the stopper 152 coupled to the housing 142 is coupled to the guide ring 124 inserted into the second coupling hole 122 of the second hinge holder 120, the housing 142 may be hinged. Accordingly, the cover 130 is also hinged rotatable with the housing 142.

Hereinafter, the operation of the present embodiment having the configuration as described above.

7 is a cross-sectional view of the process of opening the cover shown in Figure 4, Figure 8 is a cross-sectional view of the open state shown in FIG. 9 is a cross-sectional view of the clutch unit in a state in which the cover illustrated in FIG. 5 is opened and closed, and FIG. 10 is a cross-sectional view of the clutch unit in a process in which the cover illustrated in FIG. 5 is opened and closed.

First, when the switch 220 is turned on to open the cover 130 while the cover 130 is closed in the main body 100, the control unit drives the geared motor 200 by applying power to the geared motor 200. . When the geared motor 200 is driven, the first slip plate 162 rotates, and the second slip plate 180 coupled with the first slip plate 162 and the ball 170 therebetween is the shaft 186. Is fastened to the fixing ring 116 coupled to the first hinge holder 112 formed in the main body 100, the second slip plate 180 and the first slip plate 162 do not rotate.

Accordingly, the geared motor 200 itself rotates in the opposite direction to rotate the first slip plate 162, and the housing 142 to which the geared motor 200 is fixed and the cover 130 to which the housing 142 is fixed are rotated. Rotates along the rotational direction of the geared motor 200. That is, the cover 130 is opened from the main body 100.

When the cover 130 is opened, the controller detects the opening of the cover 130 by a separate sensing means and stops the driving of the geared motor 200.

When the switch 220 is turned on to close the cover 130 while the cover 130 is opened from the main body 100, the control unit applies the reverse power to the geared motor 200 to operate the geared motor 200. Drive it. In this case, since the shaft 186 of the second slip plate 180 is fixed to the fixing ring 116, the geared motor 200 itself rotates in the opposite direction to rotate the first slip plate 162. Therefore, the housing 142 to which the geared motor 200 is fixed and the cover 130 to which the housing 142 is fixed are closed to the main body 100.

On the other hand, the operation of the cover hinge device when manually opening the cover 130 will be described.

First, when the cover 130 is lifted up while the cover 130 is closed to the main body 100 to open the cover 130, the housing 142 is rotated together with the cover 130 to rotate the geared motor 200 therein. Rotate together

Therefore, the geared motor 200 and the first slip plate 162 rotate together, and the second slip plate 180 does not rotate because the shaft 186 is coupled to the fixing ring 116 and thus, the first slip plate ( 162 is staggered with the second slip plate 180.

At this time, if the pair of balls 170 is fixed to the first spherical groove 164 of the first slip plate 162, the pair of balls 170 rotate with the first slip plate 162 to the second slip plate The second spherical groove 182 of 180 is separated from the second guide groove 184 to move and move to different second spherical grooves 182. If the pair of balls 170 is fixed to the second spherical groove 182 of the second slip plate 180, on the contrary, the pair of balls 170 rotate together with the second slip plate 180 to form the first slip plate. The first spherical groove 164 of 162 is separated from the first guide groove 166 and moves to different first spherical grooves 164.

When the cover 130 is moved to the open position, the pair of balls 170 enters the second second spherical groove 182 and emits a light impact sound that 'clicks'. Since the ball 170 does not leave the second spherical groove 182 within a predetermined torque or less, it maintains the open state of the cover 130.

On the contrary, if the cover 130 is lifted up from the main body 100 in order to close the cover 130 manually, the cover 130 rotates in the reverse direction when the housing 142 is opened together with the cover 130. By rotating the geared motor 200 in the reverse direction together.

Accordingly, the geared motor 200 and the first slip plate 162 rotate together in reverse. The second slip plate 180 does not rotate because the shaft 186 is coupled to the fixing ring 116, and thus, the first slip plate 180 does not rotate. 162 is staggered with the second slip plate 180.

At this time, if the pair of balls 170 is fixed to the first spherical groove 164 of the first slip plate 162, the pair of balls 170 rotate with the first slip plate 162 to the second slip plate The second spherical groove 182 of 180 is separated from the second guide groove 184 to move and move to different second spherical grooves 182. On the contrary, if the pair of balls 170 is fixed to the second spherical groove 182 of the second slip plate 180, the pair of balls 170 rotate together with the second slip plate 180 to rotate the first slip plate. The first spherical groove 164 of 162 is separated from the first guide groove 166 and moves to different first spherical grooves 164.

When the cover 130 is moved to the closed position, the pair of balls 170 enters the other second spherical groove 182 and emits a light impact sound that 'clicks'. Since the ball 170 does not leave the second spherical groove 182 within a predetermined torque or less, the ball 130 is maintained in a closed state.

As described above, the present invention includes a housing part 140 fixed to the cover 130, a power unit 190 installed in the housing unit 140, and a power unit 190 installed in the housing unit 140. In the clutch unit 160 and the main body 100 rotated by the pair of fixing parts 110 and the main body 100 to fix the other ends of the clutch unit 160 and the housing unit 140, respectively, A cover hinge device of a mobile phone, comprising: a control unit configured to apply a driving voltage to the power unit 190; and a switch 220 provided on the main body 100 to turn on the control unit. The motor 200 rotates the clutch unit 160 to automatically open and close the cover 130, thereby increasing convenience in using the mobile phone.

In the above, the present invention has been described as an embodiment, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described embodiments, and has a general knowledge in the field to which the present invention pertains without departing from the gist of the present invention. Anyone who grows up will be able to make various variations.

Claims (6)

A housing part 140 fixed to the cover 130; A power unit 190 installed in the housing unit 140 and generating a rotational force; It is rotatably installed in the housing portion 140, is connected to the rotating shaft of the power unit 190, the slip phenomenon occurs when a predetermined or more rotational force is applied, the shaft 186 is supported on the main body 100 is provided Clutch unit 160; A pair of fixing parts (110) provided in the main body (100) for fixing one end of the shaft (186) and the housing part (140), respectively; A control unit provided in the main body 100 and applying a driving voltage to the power unit 190; In the cover hinge device of the mobile phone provided in the main body 100, having a switch 220 for operating the control unit, The clutch unit 160, A first guide groove 166 coupled to the drive shaft of the power unit 190 and connecting the pair of first spherical grooves 164 and the pair of first spherical grooves 164 at a position symmetrical from a center on one side thereof. The first slip plate 162 is formed; The second spherical groove 164 and the second guide groove 184 corresponding to the first spherical groove 164 and the first guide groove 166 are formed on one side, respectively, and the shaft 186 on the other side. The second slip plate 180 is formed; A pair of balls 170 having both sides inserted into the pair of first spherical grooves 164 and the pair of second spherical grooves 182; And And a compression spring (188) for holding the other side of the geared motor (200). delete delete delete delete delete