초록 ▼

The object of this invention is to provide a hinge device for camera-equipped mobile phones, and a mobile phone having such a hinge device. The hinge device allows the fold of a mobile phone to be automatically opened or closed relative to the main body, and allows automatic rotation of a digital ca

The object of this invention is to provide a hinge device for camera-equipped mobile phones, and a mobile phone having such a hinge device. The hinge device allows the fold of a mobile phone to be automatically opened or closed relative to the main body, and allows automatic rotation of a digital camera of the phone. The hinge device includes a fixed hinge part ( 130 ), a rotary hinge part ( 110 ), a power generating means provided in the fold to generate a rotating drive force, an internal rotor ( 106 ) provided in the rotary hinge part, a camera ( 104 ) provided in the internal rotor, a rotation stop means for stopping rotation of the internal rotor and rotating the rotary hinge part using the rotating drive force, and a power transmission means connected to both the power generating means and the fixed hinge part to selectively perform power transmission.

대표청구항 ▼

1. A hinge device for connecting a fold and a main body of a camera-equipped mobile phone to each other, comprising:a fixed hinge part provided at said main body;a rotary hinge part provided at said fold and hinged at both ends thereof to said fixed hinge part;power generating means provided in said

1. A hinge device for connecting a fold and a main body of a camera-equipped mobile phone to each other, comprising:a fixed hinge part provided at said main body;a rotary hinge part provided at said fold and hinged at both ends thereof to said fixed hinge part;power generating means provided in said fold to generate a rotating drive force;an internal rotor provided in said rotary hinge part to be rotated by the rotating drive force generated by the power generating means;an image pickup device provided in said internal rotor to take a photograph of a target subject;rotation stop means for stopping rotation of said internal rotor and rotating said rotary hinge part using the rotating drive force of the power generating means; andpower transmission means connected at both ends thereof to the power generating means and the fixed hinge part, respectively, to selectively perform power transmission. 2. The hinge device according to claim 1, wherein said power generating means comprises a motor which is rotated in either direction to generate a forward or reverse directional rotating force. 3. The hinge device according to claim 2, wherein said power generating means further comprises a reduction gear assembly connected to said motor so as to transmit the rotating drive force of the motor while lowering a rotating speed. 4. The hinge device according to claim 3, wherein said reduction gear assembly comprises:a first reduction gear assembly installed in said internal rotor; anda second reduction gear assembly connected to said first reduction gear assembly through a shaft, and installed in said rotary hinge part. 5. The hinge device according to claim 1, wherein said rotation stop means comprises an external stopper formed on an external surface of said internal rotor, and an internal stopper formed on an internal surface of said rotary hinge part. 6. The hinge device according to claim 5, wherein said external stopper and internal stopper each comprise two stoppers formed at positions spaced apart from each other at an angular interval of 180°. 7. The hinge device according to claim 1, wherein said power transmission means comprises:a first cam member connected at a first end thereof to said power generating means, and tapered at a second end thereof to have a tapered projection; anda second cam member connected at a first end thereof to the fixed hinge part, and having a tapered depression at a second end thereof such that the tapered depression of the second cam member comes into engagement with the tapered projection of the first cam member. 8. The hinge device according to claim 1, further comprising elastic support means for applying an elastic biasing force to the power transmission means. 9. The hinge device according to claim 8, wherein said elastic support means comprises a compression spring installed in said fixed hinge part. 10. The hinge device according to claim 3, wherein said reduction gear assembly comprises:a first reduction gear assembly connected to said motor;a second reduction gear assembly fixed to said rotary hinge part; anda third reduction gear assembly installed in said internal rotor and connected at a first end thereof to said first reduction gear assembly through a power transmitting unit, and connected at a second end thereof to said second reduction gear assembly through a shaft. 11. The hinge device according to claim 10, wherein said power transmitting unit comprises a timing belt or a gear train. 12. A hinge device for connecting a fold and a main body of a camera-equipped mobile phone to each other, comprising:a fixed hinge part provided at said main body;a rotary hinge part provided at said fold and hinged at both ends thereof to said fixed hinge part;an internal rotor provided in said rotary hinge part;a digital camera provided in said internal rotor;a motor provided in said fold to generate a rotating drive force;a first reduction gear assembly installed in said fold, and connected to said motor so as to transmit the rotating drive force of the motor while primarily lowering a rotating speed;a second reduction gear assembly connected to said first reduction gear assembly through a shaft, and installed in said rotary hinge part so as to transmit the rotating drive force of the motor while secondarily lowering the rotating speed;rotation stop means for stopping rotation of said internal rotor and rotating said rotary hinge part using the rotating drive force of the motor;power transmission means connected at both ends thereof to the second reduction gear assembly and the fixed hinge part, respectively, to selectively perform power transmission; andelastic support means for applying an elastic biasing force higher than the rotating drive force of the motor to the power transmission means, and allowing the power transmission means to disengage from the motor when an external force is applied to the fold. 13. The hinge device according to claim 12, wherein a third reduction gear assembly for connecting the first reduction gear assembly to the second reduction gear assembly is installed in said internal rotor, said third reduction gear assembly being connected to the first reduction gear assembly through a power transmitting unit. 14. The hinge device according to claim 13, wherein said power transmitting unit comprises a timing belt or a gear train. 15. The hinge device according to claim 12, wherein said rotation stop means comprises an external stopper formed on an external surface of said internal rotor, and an internal stopper formed on an internal surface of said rotary hinge part. 16. The hinge device according to claim 15, wherein said external stopper and internal stopper each comprise two stoppers formed at positions spaced apart from each other at an angular interval of 180°. 17. The hinge device according to claim 12, wherein said power transmission means comprises:a first cam member connected at a first end thereof to said second reduction gear assembly, and tapered at a second end thereof to have a tapered projection; anda second cam member connected at a first end thereof to the fixed hinge part, and having a tapered depression at a second end thereof such that the tapered depression of the second cam member comes into engagement with the tapered projection of the first cam member. 18. The hinge device according to claim 12, wherein said elastic support means comprises a compression spring installed in said fixed hinge part. 19. The hinge device according to claim 12, further comprising sensor brushes for respectively sensing rotation of the digital camera and rotation of the fold. 20. A mobile phone comprising a hinge device having a fixed hinge part provided at a main body of the phone and a rotary hinge part provided at a fold of the phone, thus hinging the fold to the main body, said mobile phone comprising:an internal rotor provided in said rotary hinge part;a digital camera provided in said internal rotor;power generating means provided in said internal rotor to generate a rotating drive force;rotation stop means for stopping rotation of said internal rotor and rotating said rotary hinge part using the rotating drive force of the power generating means;power transmission means connected at both ends thereof to the power generating means and the fixed hinge part, respectively, to selectively perform power transmission;elastic support means for applying an elastic biasing force higher than the rotating drive force of the power generating means to the power transmission means, and allowing the power transmission means to disengage from the motor when an external force is applied to the fold; andsignal output means for outputting an electric signal to the power generating means. 21. The mobile phone according to claim 20, wherein said power generating means comprises a motor which is rotated in either direction to generate a forward or reverse directional rotating force. 22. The mobile phone acc ording to claim 21, wherein said power generating means further comprises a reduction gear assembly connected to said motor so as to transmit the rotating drive force of the motor while lowering a rotating speed. 23. The mobile phone according to claim 22, wherein said reduction gear assembly comprises:a first reduction gear assembly installed in said internal rotor; anda second reduction gear assembly connected to said first reduction gear assembly through a shaft, and installed in said rotary hinge part. 24. The mobile phone according to claim 20, wherein said rotation stop means comprises an external stopper formed on an external surface of said internal rotor, and an internal stopper formed on an internal surface of said rotary hinge part. 25. The mobile phone according to claim 24, wherein said external stopper and internal stopper each comprise two stoppers formed at positions spaced apart from each other at an angular interval of 180°. 26. The mobile phone according to claim 20, wherein said power transmission means comprises:a first cam member connected at a first end thereof to said power generating means, and tapered at a second end thereof to have a tapered projection; anda second cam member connected at a first end thereof to the fixed hinge part, and having a tapered depression at a second end thereof such that the tapered depression of the second cam member comes into engagement with the tapered projection of the first cam member. 27. The mobile phone according to claim 20, wherein said elastic support means comprises a compression spring installed in said fixed hinge part. 28. The mobile phone according to claim 20, further comprising sensor brushes for respectively sensing rotation of the digital camera and rotation of the fold. 29. A mobile phone comprising a hinge device having a fixed hinge part provided at a main body of the phone and a rotary hinge part provided at a fold of the phone, thus hinging the fold to the main body, said mobile phone comprising:an internal rotor provided in said rotary hinge part;a motor provided in said fold to generate a rotating drive force;rotation stop means for stopping rotation of said internal rotor and rotating said rotary hinge part using the rotating drive force of the motor;a digital camera provided in said internal rotor;a reduction gear assembly used for transmitting the rotating drive force of the motor while lowering a rotating speed;power transmission means connected at both ends thereof to the reduction gear assembly and the fixed hinge part, respectively, to selectively perform power transmission;elastic support means for applying an elastic biasing force higher than the rotating drive force of the motor to the power transmission means, and allowing the power transmission means to disengage from the motor when an external force is applied to the fold; andsignal output means for outputting an electric signal to the motor. 30. The mobile phone according to claim 29, wherein said reduction gear assembly comprises:a first reduction gear assembly connected to said motor;a second reduction gear assembly fixed to said rotary hinge part; anda third reduction gear assembly installed in said internal rotor and connected at a first end thereof to said first reduction gear assembly through a power transmitting unit, and connected at a second end thereof to said second reduction gear assembly through a shaft. 31. The mobile phone according to claim 30, wherein said power transmitting unit comprises a timing belt or a gear train. 32. The mobile phone according to claim 29, wherein said reduction gear assembly comprises:a first reduction gear assembly installed in said internal rotor, and connected to said motor through a power transmitting unit; anda second reduction gear assembly fixed to said rotary hinge part, and connected to said first reduction gear assembly through a shaft. 33. The mobile phone according to claim 32, wherein said power transmitting unit comprises a timing belt or a gear train. 34. The mobile phone according to claim 29, wherein said reduction gear assembly comprises:a first reduction gear assembly connected to said motor; anda second reduction gear assembly fixed to said rotary hinge part, and connected to said first reduction gear assembly through a power transmitting unit. 35. The mobile phone according to claim 34, wherein said power transmitting unit comprises a timing belt or a gear train. 36. The mobile phone according to claim 29, wherein said rotation stop means comprises an external stopper formed on an external surface of said internal rotor, and an internal stopper formed on an internal surface of said rotary hinge part. 37. The mobile phone according to claim 36, wherein said external stopper and internal stopper each comprise two stoppers formed at positions spaced apart from each other at an angular interval of 180°. 38. The mobile phone according to claim 29, wherein said power transmission means comprises:a first cam member connected at a first end thereof to said motor, and tapered at a second end thereof to have a tapered projection; anda second cam member connected at a first end thereof to the fixed hinge part, and having a tapered depression at a second end thereof such that the tapered depression of the second cam member comes into engagement with the tapered projection of the first cam member. 39. The mobile phone according to claim 29, wherein said elastic support means comprises a compression spring installed in said fixed hinge part. 40. The mobile phone according to claim 29, further comprising sensor brushes for respectively sensing rotation of the digital camera and rotation of the fold.