Patent ID: 9631687
Date: 2017-04-25
CPC Classifications: B60T,F16D

Claim:
1. An electronic parking brake apparatus comprising: a power generating unit which generates power based on an external signal; a braking force transmission unit which is coupled to the power generating unit in a threaded connection manner, rectilinearly moves by the power, and transmits braking force generated by the rectilinear movement; a braking force supplementing unit which is disposed to be adjacent to the power generating unit while surrounding the braking force transmission unit; and a brake body part which is connected with the braking force transmission unit and stops a vehicle by using the braking force, wherein the power generating unit includes: wherein the braking force transmission unit includes: wherein the braking force supplementing unit includes: wherein the brake body part includes: wherein when a predetermined gap is formed between the anchor block and the brake shoe due to a decrease in braking force, the elastic member removes the predetermined gap by moving the nut screw using elastic restoring force.