Assembly for supporting photographing apparatus

1. An assembly for supporting a photographing apparatus, the assembly comprising:

a first supporting member that is configured to have a photographing apparatus installed thereon, and includes a rotation shaft;

a second supporting member that supports the first supporting member such that the first supporting member is configured to rotate around the rotation shaft;

a driving unit that rotates the rotation shaft;

a pinion that is installed on the rotation shaft and rotates with the rotation shaft;

a rack gear that is engaged with the pinion and slides in a sliding direction according to the rotation of the pinion; and

at least one elastic member that applies elastic force to the rack gear in the sliding direction.

2. The assembly of claim 1 , wherein the second supporting member is located below the first supporting member.

3. The assembly of claim 1 , wherein the rotation shaft is configured to provide a tilting operation.

4. The assembly of claim 1 , wherein a sensor bar is installed on the rotation shaft,

the assembly further comprising a sensor that is configured to sense proximity of the sensor bar and is installed on the second supporting member.

5. The assembly of claim 1 , wherein the driving unit comprises:

a motor; and

a power transmission unit that transmits power from the motor to the rotation shaft.

6. The assembly of claim 1 , wherein a guiding unit is installed on the second supporting member, and

a guiding hole into which the guiding unit is inserted is formed in the rack gear.

7. The assembly of claim 6 , wherein the elastic member is disposed on the guiding unit.

8. The assembly of claim 6 , where the rack gear, the guiding unit, and the elastic member are assembled as a module.

9. The assembly of claim 1 , wherein the elastic member comprises first and second elastic members that are arranged with the rack gear interposed therebetween.

10. The assembly of claim 9 , wherein the first and second elastic members have different lengths.

11. The assembly of claim 9 , wherein each of the first and second elastic members comprises a coil spring.

12. The assembly of claim 1 , wherein the elastic member comprises a coil spring.

13. A photographing apparatus support assembly comprising:

a first supporting member including a rotation shaft, the rotation shaft having a pinion;

a second supporting member that supports the first supporting member and is rotatably engaged with the first supporting member at the rotation shaft;

a rack gear that is supported by a portion of the second supporting member, and is engaged with the pinion,

wherein the rack gear slides in a sliding direction based on rotation of the pinion; and

an elastic member that is positioned to bias the rack gear to move the pinion toward a reference position in the sliding direction.

14. The assembly of claim 13 , wherein the second supporting member is located below the first supporting member.

15. The assembly of claim 13 , wherein a sensor bar is installed on the rotation shaft, and a sensor sensing the proximity of the sensor bar is supported by the second supporting member.

16. The assembly of claim 13 , further comprising a driving unit, the driving unit including a motor and a power transmission unit that transmits power from the motor to the rotation shaft.

17. The assembly of claim 13 , wherein a guiding unit is supported by second supporting member, and a guiding hole into which the guiding unit is inserted is formed in the rack gear.

18. The assembly of claim 17 , wherein the elastic member is installed on the guiding unit.

19. The assembly of claim 13 , wherein the elastic member comprises first and second separate elastic members portions, arranged with the rack gear interposed therebetween.

20. The assembly of claim 13 , wherein the elastic member comprises a coil spring.