X-ray imaging apparatus

An X-ray imaging apparatus comprising:

• an X-ray generator to generate and emit X-rays;
• an X-ray detector to detect X-rays emitted from the X-ray generator;
• a guide rail to change a position of the X-ray generator;
• a moving carriage having a first end movably coupled to the guide rail and a second end coupled to the X-ray generator;
• a magnetic body disposed on the moving carriage;
• a contact pad having a first state to hold the moving carriage by contacting the guide rail according to operation of the magnetic body and a second state to move the moving carriage by being spaced apart from the guide rail;
• and
• a holding plate coupled to the contact pad and comprising a first magnetic layer contacting the magnetic body and a second magnetic layer contacting the contact pad, and a layer of a rubber material disposed therebetween to reduce vibration or noise so that the holding plate is spaced apart from the magnetic body in the first state and moves towards the magnetic body in the second state.

An X-ray imaging apparatus comprising:

• an X-ray generator to generate and emit X-rays;
• an X-ray detector to detect X-rays emitted from the X-ray generator;
• a guide rail to move at least one of the X-ray generator and the X-ray detector;
• and
• a holding unit to hold a position of at least one of the X-ray generator and the X-ray detector and installed to contact the guide rail,
• wherein the holding unit comprises:
• a contact pad to hold the X-ray generator by contacting the guide rail;
• a magnetic body to move the contact pad using magnetic force;
• and
• a holding plate coupled to the contact pad to move according to operation of the magnetic body,
• wherein the holding plate comprises three layers, the three layers comprising a first layer contacting the contact pad and a third layer contacting the magnetic body, the first and third layers comprising a magnetic material, and a second layer disposed between the first and third layers, the second layer comprising a viscoelastic material.