KR20040065015A - Cover opening and closing and rotation mechanism of cellular phone - Google Patents

Abstract

PURPOSE: A device for opening/shutting and rotating a cover of a cellular phone is provided to rotate a cover at a rotational supporting shaft, and to display an LCD screen outside when the cover is shut, thereby stably using the LCD screen even though a cellular phone is closed. CONSTITUTION: A hinge body(120) is rotatively coupled with a body, and forms a rotation space. A rotative supporting portion(130) is fixed to the rotation space in orthogonal direction with a rotational shaft direction of the hinge body(120). A cylinder portion(170) has a rotative hole(172) rotatively coupled with the rotative supporting portion(130). The first braking member generates a resistance force for a relative rotative force of the cylinder portion(170) relating to the rotative supporting portion(130). A coupling member(200) maintains a coupled state between the rotative supporting portion(130) and the cylinder portion(170), and couples the cylinder portion(170) with a cover.

Description

COVER OPENING AND CLOSING AND ROTATION MECHANISM OF CELLULAR PHONE}

The present invention relates to a cover rotation apparatus of a mobile phone, and in particular, the cover is opened and closed with respect to the main body, and the front and rear surfaces of the cover are inverted, so that the liquid crystal display of the cover can be used stably even in a closed state of the mobile phone.

As an example of a hinge device of a mobile phone, a 'hinge device of a mobile phone' is disclosed in patent application No. 10-1998-0046799.

The cover hinge device of a general mobile phone including the patent application uses a hinge device as an intermediary means for causing the cover (meaning to include a flip or folder) to be hinged from the main body.

Such a hinge device has a function of maintaining the current state with a certain amount of elastic force in the closed state and the open state of the cover, respectively.

On the other hand, the cover is provided with a liquid crystal screen on the surface in contact with the main body, the liquid crystal screen is in contact with the main body when the cover is closed with respect to the main body so that the user can not see. Therefore, the liquid crystal display of the cover is set to automatically turn off when the cover is closed and to turn on automatically when the cover is opened.

On the other hand, recently, a function of enjoying a game through an LCD screen by inputting a game program to a mobile phone and connecting a keypad to the mobile phone has been developed.

However, the cover hinge device of the general mobile phone described above only serves to open and close the cover with respect to the main body, and the LCD screen is hidden when the cover is closed. Therefore, in order to enjoy the game using a general mobile phone must be open and use the cover, there was a problem that the mobile phone is left in an unsafe state continuously.

The present invention has been made to solve the above problems, the object of the present invention is that the cover is opened and closed with respect to the main body, while the front and rear surfaces of the cover is inverted, so that the liquid crystal screen of the cover in a stable state of the mobile phone It is intended to be used.

1 is an exploded perspective view of a mobile phone to which the cover opening and closing device is applied as an embodiment of the present invention;

2 and 3 is an exploded perspective view of the main portion of the cover opening and closing device shown in Figure 1,

4 is a perspective view of the coupled state of FIG.

5 is a cross-sectional view of this embodiment,

6 and 7 are perspective views of the state of use of the mobile phone shown in FIG.

<Explanation of symbols for main parts of drawing>

100: main body 102: hinge hole

104: pipe 106: fixing hole

110: cover 112: first fastener

114: fastening member 118: LCD screen

120: hinge cylinder 122: rotation space

124: coupling groove 126: first through hole

128: coupling hole 130: rotation support

132: recess 134: the second through hole

136: first coupling shaft 138: first cutting portion

140: first pin hole 142: insertion portion

146: screw 150: first braking member

152: first compression spring 154: movable piece

156: boss 158: curved surface

160: second compression spring 170: cylinder portion

172: turning hole 174: stopping groove

176: second coupling shaft 178: second cutting portion

200: coupling member 210: arm

212: first coupling hole 213: second fastening hole

214: washer 216: nut

218: second coupling hole 220: second pin hole

230: pin 300: housing

302: internal space 304: third through hole

306: protrusion 308: sliding groove

320: rotary slip 322: coupling shaft

324: coupling shaft 326: first cylindrical portion

328: first waveform surface 330: fixed slip portion

332: third coupling hole 334: second cylindrical portion

336: second wave surface 338: the sliding projection

340: third compression spring

The present invention for achieving the above object, a hinge cylinder is rotatably coupled to the main body, the rotation space portion formed in the center area; A rotation support part fixed to the rotation space in a direction orthogonal to the rotation axis direction of the hinge cylinder; A cylinder part having a rotation hole to which the rotation support part is rotatably coupled; A first braking member for generating a resistance less than or equal to a relative rotational force of the cylinder portion relative to the rotational support; And a coupling member which maintains the rotation support portion coupled to the cylinder portion and couples the cylinder portion to the cover.

Hereinafter will be described in detail with reference to the accompanying drawings, the opening and closing the cover and the rotation device of the mobile phone according to the present invention.

1 is an exploded perspective view of a mobile phone to which the cover opening and closing device is applied as an embodiment of the present invention, and FIGS. 2 and 3 are exploded perspective views of main parts of the cover opening and closing device shown in FIG. 1. Figure 4 is a perspective view of the coupled state of Figure 2, Figure 5 is a cross-sectional view of this embodiment.

A coupling groove 124 is formed at the bottom of the rotation space 122, a first through hole 126 is formed through the coupling groove 124 from the side of the hinge cylinder 120, and the rotation support part 130 is formed. An insertion part 142 coupled to the coupling groove 124 is formed at the bottom of the screw 146, and the screw 146 is fastened to the insertion part 142 through the first through hole 126.

The first braking member 150 includes a pair of recesses 132 elongated in the axial direction on both side surfaces of the rotary support 130; A plurality of second through holes 134 formed to penetrate both recesses 132; A plurality of first compression springs 152 inserted into each second through hole 134; A plurality of bosses 156 coupled to each recess 132 so as to be flowable, and coupled to each second through hole 134 are formed on one surface thereof, and the curved surface 158 protruding from the other surface thereof is long in the axial direction. A movable piece 154 formed; It consists of a pair of stopping grooves (174) formed on both sides of the rotary hole 172 so that the curved surface 158 is partially inserted.

The coupling member 200 is formed to protrude at one end of the rotary support 130, the first cutting portion 138 is formed on both sides of the end, respectively, the first pin hole 140 through the first cutting portion 138 on both sides The first coupling shaft 136 is formed; A second compression spring 160 inserted into the first coupling shaft 136 to elastically support the rotation support part 130 from an inner side to an outer side of the rotation hole 172; A second coupling shaft 176 protruding from one end of the cylinder unit 170, passing through the first coupling shaft 136, and having second cutting portions 178 formed at both sides of the end; An arm 210 having a first coupling hole 212 to which the second coupling shaft 176 is rotatably coupled, and fixed to the cover 110; A washer 214 coupled to the first coupling shaft 136 passing through the second coupling shaft 176 and the first coupling hole 212; A second coupling hole 218 to which the first coupling shaft 136 passed through the washer 214 is coupled is formed, and a second pin hole 220 formed therethrough is formed to correspond to the first pin hole 140 from the lateral direction. Nut 216; And a pin 230 fastened to the second pin hole 220 and the first pin hole 140.

In addition, a second braking which is formed at one side of the hinge cylinder 120 has a coupling hole 128, and generates a resistance of a predetermined or less resistance to rotation of the hinge cylinder 120 with respect to the body 100 in the coupling hole 128. The member is installed.

The second braking member is coupled to the coupling hole 128, the inner space 302 of which one side is opened is formed, the third through hole 304 is formed at one end, the projection on the inner side of the other end A housing 300 in which 306 is formed; A coupling shaft 322 is formed to pass through the third through hole 304 and is coupled to the fixing hole 106 formed at one side of the main body 100, and at the center of the side opposite to the coupling shaft 322. The coupling shaft 324 is formed, the first cylindrical portion 326 is formed on the outer periphery of the coupling shaft 324, the continuous to be horizontal toward the coupling shaft 324 on the upper end surface of the first cylindrical portion 326 A rotating slip part 320 formed of a first surface and having a first waveform surface 328 having a waveform curve of two wavelengths in one rotation and rotatably inserted into the inner space 302; The second coupling hole 332 is rotatably coupled to the coupling shaft 324 is formed in the center, the second cylindrical portion 334 is formed on the outer circumference of the second coupling hole 332, the second cylindrical portion ( A fixed slip portion 330 formed with a second waveform surface 336 corresponding to the first waveform surface 328 along the upper surface of the surface 334 and rotatably inserted into the inner space 302; And a third compression spring 340 inserted into the inner space 302 with one end coupled to the protrusion 306 and the other end supported by the fixed slip 330.

Sliding protrusion 338 is formed on the side of the fixed slip portion 330, the moving direction of the fixed slip portion 330 so that the sliding protrusion 338 is slidably inserted into the inner space 302 of the housing 300. A sliding groove 308 is formed along the.

On the other hand, the hinge hole 102 is formed in the body 100 is coupled to the hinge cylinder 120. A pipe 104 connecting the hinge hole 102 and the hinge cylinder 120 is provided to enable hinge rotation of one side of the hinge cylinder 120. A flexible PCB connecting the main body 100 and the cover 120 passes through the pipe 104.

The first fastening hole 112 is formed in the cover 110, and the second fastening hole 213 corresponding to the first fastening hole 112 is formed in the arm 210. In addition, the fastening member 114 passes through the first fastening hole 112 and is fastened to the second fastening hole 213, so that the cover 110 and the arm 210 are coupled to each other. The fastening member 114 is suitable if it is a screw or pin.

Hereinafter will be described the operation of the cover opening and closing of the mobile phone having the configuration as described above.

The state in which the cover opening and closing device and the rotation device of the present embodiment are installed in the cellular phone is well illustrated in FIG.

When the cover 110 is closed to the main body 100, the curved surface 158 of the movable piece 154 receives the elasticity of the first compression spring 152 to elastically concave the recess 132 of the cylinder portion 170. Support to generate a resistance that interferes with the rotation of the cylinder portion 170 and the arm 210.

Therefore, the state in which the rotation of the cover 110 is suppressed is maintained.

The second coupling hole 332 of the fixed slip 330 is rotatably coupled to the coupling shaft 324 of the rotary slip 320, and the first waveform surface 328 of the rotary slip 320 is rotatable. And the second waveform surface 336 of the fixed slip portion 330 are brought into close contact with each other so as to be rotatable and sliding, and the third compression spring 340 is held behind the fixed slip portion 330.

The coupling shaft 322 of the rotary slip part 320 is fixedly coupled to the fixing hole 106 of the main body 100 through the third through hole 304 of the housing 300. In addition, the sliding protrusion 338 of the fixed slip portion 330 is inserted into the sliding groove 308 of the housing 300 to prevent rotation.

Since the second waveform surface 336 of the fixed slip portion 330 receives elasticity of the third compression spring 340 and contacts the first waveform surface 322 of the rotary slip portion 320, the fixed slip portion 330 It generates resistance to interfere with the rotation to the hinge cylinder 120 that is integrally rotated with). Therefore, the state in which the opening and closing operation of the cover 110 coupled with the hinge cylinder 120 is suppressed is maintained.

In particular, when the cover 110 is closed to the main body 100, the valleys of the peaks of the first waveform surface 328 of the rotary slip part 320 and the valleys of the second waveform surface 336 of the fixed slip part 330 are combined. The valley of the first waveform surface 328 remains coupled to the acid of the second waveform surface 336.

On the other hand, when the user wants to see the LCD screen 118 while the mobile phone is turned off, the cover 110 is rotated from the main body 100 with the hinge cylinder 120 as an axis and opened as shown in FIG. 6.

When the cover 110 starts to open, the hinge cylinder 110 fixed to the cover 110 and the housing 300 coupled with the hinge cylinder 110 are also rotated together. In this case, the fixed slip portion 330 inserted into the inner space of the housing 300 and rotating together with the cover 120 is staggered from each other in contact with the rotating slip portion 320 which is coupled to the main body 100 and does not rotate. .

That is, when the cover 110 is opened to some extent from the main body 100, the peak of the first waveform surface 328 slides and slides toward the peak of the second waveform surface 336 so that the third compression spring 340 is moved. The most compressed state.

Subsequently, when the cover 110 is opened to the call angle, the acid of the first waveform surface 328 is coupled to the valley beyond the acid of the second waveform surface 336, and the third compression spring 340 is extended and fixed to the restoring force. The slip part 330 is supported.

In this operation, the second coupling hole 332 of the fixed slip part 330 is inserted into the coupling shaft 324 of the rotary slip part 320 to interact with the fixed slip part 330 and the rotary slip part 320. The center is firmly supported so that this can be done smoothly. And the fixed slip portion 330 is a sliding projection 338 is inserted into the sliding groove 308 to prevent rotational movement and only the linear movement by the elasticity of the third compression spring (340).

In this state, when the cover 110 is rotated in one direction as shown in FIG. 7, the arm 210 and the cylinder unit 170 fixed to the cover 110 rotate. At this time, the curved surface 158 of the movable piece 154 coupled to the rotary support 130 is separated from the stopping groove 174 of the cylinder 170 to rotate along the inner surface of the rotary hole 172. Therefore, the first compression spring 152 is pushed by the movable piece 154 into a compressed state.

Subsequently, when the cover 110 rotates 180 °, each curved surface 158 of the pair of movable pieces 154 enters the stopping groove 174 in the opposite position. The first compression spring 152 expands to generate a braking force as the first time the movable piece 154 to the outside.

In this state, when the user rotates the cover 110 and closes the main body 100, the liquid crystal screen 118 of the cover 110 is positioned on the upper surface, so that the user sees the liquid crystal screen 118 even when the mobile phone is in a closed state. It becomes possible. Therefore, the user can connect the game keypad to the mobile phone and can enjoy the game in a stable state through the LCD screen 118.

When the user does not see the LCD screen 118 of the cover 110, the LCD panel 118 of the cover 110 is rotated to face the main body 100 by operating in the reverse order to the above. Close it.

As described above, in the present invention, when the cover 110 is rotated about the cylinder unit 170 and the cover 110 is closed, the LCD screen 118 is exposed to the outside, so that the LCD screen is stably stable even in a closed state of the mobile phone. There is an effect that can use (118).

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 claims, and has a general knowledge in the field of the present invention without departing from the gist of the present invention. Anyone who grows up will be able to make various variations.

Claims (7)

A hinge cylinder 120 rotatably coupled to the main body 100 and having a rotation space portion 122 formed in a central area thereof; A rotation support part 130 fixed to the rotation space part 122 in a direction orthogonal to the rotation axis direction of the hinge cylinder 120; A cylinder part 170 having a rotation hole 172 to which the rotation support part 130 is rotatably coupled; A first braking member (150) for generating a resistance of a certain level or less with respect to the rotational force of the cylinder portion (170) relative to the rotation support portion (130); And And a coupling member 200 for maintaining the state in which the rotation support unit 130 is coupled to the cylinder unit 170 and coupling the cylinder unit 170 to the cover 110. Cover opening and closing device. The method of claim 1, wherein the coupling groove 124 is formed at the bottom of the rotation space portion 122, the first through hole 126 penetrates through the coupling groove 124 from the side of the hinge cylinder 120 Is formed, the bottom portion of the rotary support 130 is formed with an insertion portion 142 coupled to the coupling groove 124, the screw 146 passes through the first through hole 126 and the insertion portion 142 Cover opening and closing device of the mobile phone, characterized in that the fastening to). The method of claim 1, wherein the first braking member 150, a pair of grooves formed in the axial direction on both sides of the rotation support portion 130 132; A plurality of second through holes 134 formed to penetrate the both grooves 132; A plurality of first compression springs 152 inserted into the second through holes 134; A plurality of bosses 156 are coupled to each recess 132 so as to be flowable, and a plurality of bosses 156 coupled to each of the second through holes 134 are formed, and the curved surface 158 protrudes from the other surface thereof. A movable piece 154 formed to be long; And a pair of stop grooves (174) formed on both sides of the rotating hole (172) to partially insert the curved surface (158). The method according to claim 1, The coupling member 200, The first coupling is formed in one end of the rotary support 130, the first cut portion 138 is formed on both sides of the end, respectively, the first coupling formed with a first pin hole 140 through the first cut portion 138 on both sides Axis 136; A second compression spring (160) inserted into the first coupling shaft (136) to elastically support the rotation support part (130) from an inner side to an outer direction of the rotation hole (172); A second coupling shaft 176 protruding from one end of the cylinder portion 170, passing the first coupling shaft 136 inward, and having second cutting portions 178 formed at both sides of the end portion; An arm 210 having a first coupling hole 212 to which the second coupling shaft 176 is rotatably coupled, and fixed to the cover 110; A washer (214) coupled to the first coupling shaft (136) passing through the second coupling shaft (176) and the first coupling hole (212); A second coupling hole 218 to which the first coupling shaft 136 passed through the washer 214 is coupled is formed, and the second pin hole 220 penetrated to correspond to the first pin hole 140 from the lateral direction. Nut 216 is formed; And Cover the opening and rotation of the mobile phone, characterized in that it comprises a; pin 230 is fastened to the second pin hole 220 and the first pin hole 140. The method according to claim 1, wherein the coupling hole 128 is formed at one side of the hinge cylinder 120, the coupling hole 128 is less than a constant for the rotation action of the hinge cylinder 120 with respect to the main body 100 Cover hinge device of a mobile phone, characterized in that the second braking member for generating a resistance of the installed. The method of claim 5, wherein the second braking member, The housing is coupled to the coupling hole 128, the inner space 302 of which one side is opened, the third through hole 304 is formed at one end, the projection 306 is formed on the inner side of the other end 300; A coupling shaft 322 is formed to pass through the third through hole 304 and is coupled to a fixing hole 106 formed at one side of the main body 100, and is opposite to the coupling shaft 322. A coupling shaft 324 is formed at the center of the coupling shaft, and a first cylindrical portion 326 is formed at an outer circumference of the coupling shaft 324, and the coupling shaft 324 is formed on an upper end surface of the first cylindrical portion 326. A rotating slip part 320 formed of a continuous surface horizontally directed toward and having a first waveform surface 328 having a waveform curve of two wavelengths in one rotation and rotatably inserted into the internal space 302; The second coupling hole 332 is rotatably coupled to the coupling shaft 324 is formed in the center, the second cylindrical portion 334 is formed on the outer periphery of the second coupling hole 332, the second A fixed slip portion 330 which is formed along the top surface of the cylindrical portion 334 corresponding to the first waveform surface 328 and is rotatably inserted into the inner space 302; And a third compression spring 340 inserted into the inner space 302 with one end coupled to the protrusion 306 and the other end supported by the fixed slip 330. Cover hinge of mobile phone. The method according to claim 6, wherein the sliding projection (338) is formed on the side of the fixed slip portion (330); The cover of the mobile phone, characterized in that the sliding groove 308 is formed in the inner space 302 of the housing 300 along the moving direction of the fixed slip portion 330 so that the sliding protrusion 338 is slidably inserted. Hinge device.