Booster assembly for vehicles

1. A booster assembly for vehicles comprising:

a booster including a casing having a front shell and a rear shell sealingly coupled to each other, and a hollow tube mounted through the casing;

a master cylinder including a flange part coupled to the casing; and

a mounting bolt inserted through the flange part and the tube in the casing to fix the booster and the master cylinder to a panel of a vehicle body,

wherein the tube has a clip slot formed outside of the casing by cutting a circumferential surface of an end portion thereof, and the clip slot is coupled with a clip to firmly secure the mounting bolt to the tube.

2. The booster assembly for vehicles according to claim 1 , wherein the flange part is formed with a recess to receive the clip therein.

3. The booster assembly for vehicles according to claim 2 , wherein the clip includes a base portion fixedly received in the recess, an elastic bent portion bent upwards from an end of the base portion, and a pressing portion extending from an end of the elastic bent portion and inserted through the clip slot.

4. The booster assembly for vehicles according to claim 3 , wherein the mounting bolt includes a head part and a shaft part, and wherein

the shaft part has a protrusion formed on a portion of an outer circumferential surface thereof in a circumferential direction.

5. The booster assembly for vehicles according to claim 4 , further comprising:

a pedal bracket mounted to the panel of the vehicle body, to which a brake pedal is coupled, wherein

the pedal bracket is integrally provided with a nut, and the mounting bolt is screwed into the nut.

6. A booster assembly for vehicles comprising:

a dashboard mounted to a vehicle body, the dashboard partitioning an engine room and a passenger compartment from each other;

a booster and a master cylinder coupled to the dashboard in a space of the engine room;

a pedal bracket coupled to the dashboard in a space of the passenger compartment, the pedal bracket being integrally provided with a nut; a mounting bolt inserted through the booster and the master cylinder in the space of the engine room, the mounting bolt being screwed into the nut of the pedal bracket;

a tube mounted through the booster so that the mounting bolt is inserted through the tube, the tube having a clip slot formed outside a casing of the booster by cutting a surface of an end portion thereof by a certain length in a circumferential direction; and

a clip coupled to the clip slot to firmly secure the mounting bolt to the tube by pressing a circumferential surface of the mounting bolt.

7. The booster assembly for vehicles according to claim 6 , wherein the mounting bolt includes a head part and a shaft part extending from the head part, and wherein

the shaft part has screw threads formed at an end portion thereof to be screwed into the nut, and a protrusion formed at a circumferential surface thereof to be caught by the clip when the shaft part moves in a direction of escaping from the tube, thereby preventing the mounting bolt from totally escaping from the tube.

8. The booster assembly for vehicles according to claim 6 , wherein the clip includes a base portion, an elastic bent portion bent upwards from an end of the base portion, and a pressing portion extending from an end of the elastic bent portion and inserted through the clip slot.

9. The booster assembly for vehicles according to claim 1 , wherein the clip engages the mounting bolt.

10. The booster assembly for vehicles according to claim 6 , wherein the clip engages the mounting bolt.