| 摘要 |
An X-ray imaging apparatus has an X-ray imaging unit having an X-ray emitting source and an X-ray image recording member, and a rotatably supporting pedestal for rotatably supporting the X-ray imaging unit. A cam member is provided at one of the X-ray imaging unit and the rotatably supporting pedestal, a cam surface of which extends in the circumferential direction around the rotating center line of the X-ray imaging unit and an engaging recess is formed on the cam surface to be recessed inwardly in the radial direction relative to the rotating center line. The engaging mechanism is provided at the other of the X-ray imaging unit and the rotatably supporting pedestal to be in contact with the cam surface of the cam member and telescopically engaged with the engaging recess of the cam surface when the X-ray imaging unit is rotated.
|
