Power swivel device

1 . A power swivel device comprising:

a fixing base installed in a body or a seat of a vehicle;

a rotary plate rotatably installed on the fixing base and on which a driven gear part is formed on an inner surface or an outer surface;

a variable actuator device which swivels and rotates the rotary plate relative to the fixing base by utilizing a drive gear engaged with the driven gear part of the rotary plate, wherein position of the drive gear is variably installed relative to the fixing base; and

an elastic pressurization device configured to elastically pressurize pressurizing the variable actuator device to enable the drive gear to be elastically pressurized in a direction to the driven gear part,

wherein the elastic pressurization device comprises:

a fixing block fixed to the fixing base, having an opening formed in a direction of the variable actuator device, and defining a storage space therein; and

an elastic member having at least a portion stored in the storage space of the fixing block, and having a leading end that protrudes outward from the fixing block through the opening, the elastic member configured to act on a restoring force in a direction of pressing the variable actuator device.

2 . The power swivel device of claim 1 ,

wherein the elastic pressurization device further comprises an elastic adjustment device which adjusts the restoring force of the elastic member.

3 . The power swivel device of claim 2 ,

wherein the elastic adjustment device comprises

a guide which supports a rear end of the elastic member and is installed to be able to move forward and backward along the storage space of the fixing block; and

an elastic adjuster which is screwed together with the fixing block to adjust forward and backward position of the guide and move the elastic member forward and backward by screwing.

4 . The power swivel device of claim 1 ,

wherein the variable actuator device is a rotating type variable actuator device which is rotatably installed based on swing axis installed on one side of the fixing base.

5 . The power swivel device of claim 4 ,

wherein the rotating type variable actuator device comprises

a rotating bracket wherein a portion of which is penetrated by the swing axis to enable rotation; and

an actuator which is installed on the rotating bracket so that it can be rotated together with the rotating bracket, comprising the drive gear, a motor which rotates the drive gear, and a reduction gear box which decelerates and transmits driving force of the motor to the drive gear.

6 . The power swivel device of claim 5 ,

wherein the rotating bracket comprises

an axis support piece formed in a portion to rotationally support a rotation axis of the drive gear such that two ends of the drive gear are rigidly coupled, and a through-hole formed in another portion such that a portion of the reduction gear box can be pierced.

7 . The power swivel device of claim 1 ,

wherein the variable actuator device is a sliding type variable actuator device that is slidably installed with the fixing block of the elastic pressurization device.

8 . The power swivel device of claim 7 ,

wherein the sliding type variable actuator device comprises

a sliding bracket wherein a portion of which is slidably formed along a rail part of the fixing base of the elastic pressurization device; and

an actuator which is installed on the sliding bracket so that it can be slid together with the sliding bracket, comprising the drive gear, a motor which rotates the drive gear, and a reduction gear box which decelerates and transmits driving force of the motor to the drive gear.

9 . The power swivel device of claim 1 ,

wherein the fixing base comprises

a first fixing plate which is installed on a lower side of the rotary plate; and

a second fixing plate which is installed on an upper side of the rotary plate.

10 . A power swivel device comprising:

a fixing base installed in a body or a seat of a vehicle;

a rotary plate rotatably installed on the fixing base and on which a driven gear part is formed on an inner surface or an outer surface;

a variable actuator device which swivels and rotates the rotary plate relative to the fixing base by utilizing a drive gear engaged with the driven gear part of the rotary plate, wherein position of the drive gear is variably installed relative to the fixing base; and

an elastic pressurization device configured to elastically pressurize the variable actuator device to enable the drive gear to be elastically pressurized in a direction to the driven gear part,

wherein the variable actuator device is a rotating type variable actuator device which is rotatably installed based on swing axis installed on one side of the fixing base, and

wherein the rotating type variable actuator device comprises:

a rotating bracket having a portion penetrated by the swing axis to enable rotation; and

an actuator installed on the rotating bracket and configured to rotate together with the rotating bracket, the actuator comprising the drive gear, a motor which rotates the drive gear, and a reduction gear box configured to decelerate and transmit driving force of the motor to the drive gear.

11 . The power swivel device of claim 10 ,

wherein the rotating bracket comprises:

an axis support piece formed in a portion to rotationally support a rotation axis of the drive gear such that two ends of the drive gear are rigidly coupled, and a through-hole formed in another portion such that a portion of the reduction gear box can be pierced.

12 . The power swivel device of claim 10 ,

wherein the variable actuator device is a sliding type variable actuator device that is slidably installed with a fixing block of the elastic pressurization device.

13 . A power swivel device comprising:

a fixing base installed in a body or a seat of a vehicle;

a rotary plate rotatably installed on the fixing base and on which a driven gear part is formed on an inner surface or an outer surface;

a variable actuator device which swivels and rotates the rotary plate relative to the fixing base by utilizing a drive gear engaged with the driven gear part of the rotary plate, wherein position of the drive gear is variably installed relative to the fixing base; and

an elastic pressurization device configured to elastically pressurize the variable actuator device to enable the drive gear to be elastically pressurized in a direction to the driven gear part,

wherein the variable actuator device is a sliding type variable actuator device that is slidably installed with a fixing block of the elastic pressurization device.

14 . The power swivel device of claim 13 ,

wherein the sliding type variable actuator device comprises:

a sliding bracket wherein a portion of which is slidably formed along a rail part of the fixing base of the elastic pressurization device; and

an actuator which is installed on the sliding bracket so that it can be slid together with the sliding bracket, comprising the drive gear, a motor which rotates the drive gear, and a reduction gear box which decelerates and transmits driving force of the motor to the drive gear.

15 . The power swivel device of claim 13 ,

wherein the fixing base comprises:

a first fixing plate which is installed on a lower side of the rotary plate; and

a second fixing plate which is installed on an upper side of the rotary plate.