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X-ray irradiator and X-ray imaging apparatus

  • US 20060126792A1
  • Filed: 12/08/2005
  • Published: 06/15/2006
  • Est. Priority Date: 12/09/2004
  • Status: Active Grant
First Claim
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1. An X-ray irradiator comprising:

  • an X-ray tube having a flange formed so as to surround an X-ray output window, the flange having a notch formed in a peripheral edge thereof;

    a collimator box having an entry plate formed with an X-ray incidence window, the collimator box accommodating a collimator in the interior thereof;

    a ring provided on the entry plate so as to surround the X-ray incidence window, the ring receiving therein the flange of the X-ray tube and having a plurality of slots formed radially through the ring;

    a first tongue piece inserted through one of the plural slots from outside to inside of the ring by means of a spring, and fitted at a front end portion thereof into the notch formed in the peripheral edge of the flange;

    a lock means for locking the first tongue piece unlockably;

    a plurality of second tongue pieces being inserted through the remaining slots of the plural slots from outside to inside of the ring, and holding down a back side of the flange;

    a pair of half-rings each taking a partial charge of holding the plural second tongue pieces at positions outside the ring, the pair of half-rings, when one ends and opposite ends thereof are respectively opposed to each other, surrounding the ring in a state in which the plural second tongue pieces are inserted respectively into the plural slots, the opposite ends of the pair of half-rings being pivotally connected to the entry plate so that the one ends thereof can be opened and closed; and

    a connecting device for disconnectably connecting the pair of half-rings in a closed state of the one ends of the half-rings.

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