Active roll control apparatus

1. An active roll control apparatus in which a stabilizer bar installed between left and right wheels of a vehicle and extending in a first direction and a stabilizer link connected to the stabilizer bar are moved to adjust a stiffness value of the stabilizer bar, the active roll control apparatus comprising:

a sliding part having one side connected to the stabilizer bar and the other side connected to the stabilizer link to slide the stabilizer link in a second direction perpendicular to the first direction; and

a movement restricting part installed at the sliding part to restrict movement when the sliding part slides,

wherein the sliding part includes:

a joint shaft having one side coupled to one end of the stabilizer bar; and

a fastening member having one side coupled to the end of the stabilizer link and having the joint shaft inserted thereinto to slide in the second direction along an outer surface of the joint shaft,

wherein the movement restricting part includes:

a first protrusion protruding outward in a radial direction of the joint shaft from one surface inside the guide groove of the joint shaft; and

a locking member formed at an inner surface of the fastening member to correspond to the first protrusion to restrict sliding movement of the fastening member.

2. The active roll control apparatus of claim 1 , wherein the locking member includes a second protrusion protruding from the inner surface of the fastening member and coming into contact with the first protrusion to restrict the first protrusion.

3. The active roll control apparatus of claim 1 , wherein the locking member has a protrusion groove into which the first protrusion is insertable formed at the inner surface of the fastening member.

4. The active roll control apparatus of claim 1 , wherein the first protrusion is formed in plurality, and the plurality of first protrusions are spaced apart along an extending direction of the guide groove.

5. The active roll control apparatus of claim 1 , wherein the plurality of first protrusions are spaced apart along a circumferential direction of the joint shaft.

6. The active roll control apparatus of claim 2 , wherein the first protrusion and the second protrusion are formed of an elastic material.

7. The active roll control apparatus of claim 2 , wherein the first protrusion and the second protrusion are a ball plunger.

8. The active roll control apparatus of claim 1 , wherein the first protrusion includes:

a first elastic part having a semi-circular cross-section; and

a second elastic part having a circular cross-section, one end coming into contact with an inner circumferential surface of the first elastic part, and the other end coming into contact with one surface inside the guide groove to support the first elastic part.

9. The active roll control apparatus of claim 8 , wherein the first protrusion further includes:

a third elastic part having one end coupled to one surface inside the first elastic part and the other end coupled to one surface inside the guide groove; and

a fourth elastic part having one end coupled to the other surface inside the first elastic part and the other end coupled to the other surface inside the guide groove.

10. The active roll control apparatus of claim 9 , wherein the third elastic part and the fourth elastic part are disposed parallel to each other, and the third elastic part and the fourth elastic part form an X-shape as a pair.

11. The active roll control apparatus of claim 9 , wherein the second elastic part is disposed between one side surface of the third elastic part and one side surface of the fourth elastic part facing the surface of the third elastic part.

12. The active roll control apparatus of claim 9 , wherein the first elastic part, the third elastic part, and the fourth elastic part are a leaf spring, and the second elastic part is a coil spring.

13. The active roll control apparatus of claim 1 , wherein the joint shaft has a cylindrical shape, a guide groove is formed at an outer circumferential surface of the joint shaft along an extending direction of the joint shaft, and the fastening member slides along the guide groove.