Parking brake apparatus for vehicle

A parking brake apparatus for a vehicle, comprising:

• a motor section receiving electric power from an outside, and generating power;
• a power transmission section rotated by driving the motor section, and including transmission worm gears;
• a pair of pressing units receiving power from the power transmission section and pressing a brake pad;
• a load transmission unit installed between the pair of pressing units, connected to each of the pair of pressing units, transmitting a pressing load of any one of the pair of pressing units to the other pressing unit, and made of a magnetic material;
• a magnet unit disposed to be spaced apart from the load transmission unit;
• and
• a hall sensor unit disposed between the load transmission unit and the magnet unit, and sensing a change in magnetic field according to rotation of the load transmission unit,
• wherein the load transmission unit comprises a pair of ring gear sections which are directly meshed with each other,
• wherein each of the pair of ring gear sections is rotatable by being meshed with a planetary gear section,
• wherein at least any one of the pair of ring gear sections is made of a magnetic material, and
• wherein the magnet unit is disposed to face the ring gear section which is made of the magnetic material, and the hall sensor unit senses a change in magnetic field according to rotation of the ring gear section.

A parking brake apparatus for a vehicle, comprising:

• a motor section receiving electric power from an outside, and generating power;
• a power transmission section rotated by driving the motor section, and including transmission worm gears;
• a pair of pressing units receiving power from the power transmission section and pressing a brake pad;
• a load transmission unit installed between the pair of pressing units, connected to each of the pair of pressing units, transmitting a pressing load of any one of the pair of pressing units to the other pressing unit, and made of a magnetic material;
• a magnet unit disposed to be spaced apart from the load transmission unit;
• and
• a hall sensor unit disposed between the load transmission unit and the magnet unit, and sensing a change in magnetic field according to rotation of the load transmission unit,
• wherein the load transmission unit comprises:
• a pair of ring gear sections;
• and
• at least one transmission gear section disposed between the pair of ring gear sections, and meshed with the ring gear sections,
• wherein the transmission gear section is made of a magnetic material, and
• wherein the magnet unit is disposed to face the transmission gear section which is made of the magnetic material, and the hall sensor unit senses a change in magnetic field according to rotation of the transmission gear section.