Patent Number: 
Section: claims

1. An X-ray fluorescence analysis apparatus comprising: an X-ray generator; an X-ray detector; a housing; and a collimator for defining a range for the passage of X-rays from the X-ray generator; wherein a right-hand screw thread is provided on a first side of the collimator for attachment of the collimator to the housing and detachment of the collimator from the housing, a corresponding right-hand screw thread is provided in the housing for receiving the right-hand screw thread provided on the collimator, and a left-hand screw thread is provided on a second side of the collimator opposite the first side coaxial with the right-hand screw thread for attachment of the collimator to an attachment jig for attachment of the collimator to the housing and detachment of the collimator from the housing. 2. An X-ray fluorescence analysis apparatus according to  claim 1 ; wherein the collimator is provided with an indentation or projection for tightening. claim 1 3. An X-ray fluorescence analysis apparatus according to  claim 1 ; wherein the right-hand screw thread of the collimator is an external screw thread and the right-hand screw thread of the housing is an internal screw thread. claim 1 4. An X-ray fluorescence analysis apparatus according to  claim 1 ; wherein the right-hand screw thread of the collimator is an internal screw thread and the right-hand screw thread of the housing is an external screw thread. claim 1 5. An X-ray fluorescence analysis apparatus according to  claim 1 ; wherein the attachment jig has a left-hand screw thread for receiving the left-hand screw thread of the collimator for screwing the collimator into the right-hand screw thread of the housing and unscrewing the collimator from the right-hand screw thread of the housing. claim 1 6. An X-ray fluorescence analysis apparatus comprising: an X-ray generator; an X-ray detector; a housing; and a collimator for defining a range for the passage of X-rays from the X-ray generator; wherein a right-hand screw thread is provided on a first side of the collimator for attachment of the collimator to the X-ray generator and detachment of the collimator from the X-ray generator, a corresponding right-hand screw thread is provided in the X-ray generator for receiving the right-hand screw thread provided on the collimator, and a left-hand screw thread is provided on a second side of the collimator opposite the first side coaxial with the right-hand screw thread for attachment of the collimator to an attachment jig for attachment of the collimator to the X-ray generator and detachment of the collimator from the X-ray generator. 7. An X-ray fluorescence analysis apparatus according to  claim 6 ; wherein the collimator is provided with an indentation or projection for tightening. claim 6 8. An X-ray fluorescence analysis apparatus according to  claim 6 ; wherein the right-hand screw thread of the collimator is an external screw thread and the right-hand screw thread of the X-ray generator is an internal screw thread. claim 6 9. An X-ray fluorescence analysis apparatus according to  claim 6 ; wherein the right-hand screw thread of the collimator is an internal screw thread and the right-hand screw thread of the X-ray generator is an external screw thread. claim 6 10. An X-ray fluorescence analysis apparatus according to  claim 6 ; wherein the attachment jig has a left-hand screw thread for receiving the left-hand screw thread of the collimator for screwing the collimator into the right-hand screw thread of the X-ray generator and unscrewing the collimator from the screw thread of the X-ray generator. claim 6 11. An X-ray fluorescence analysis apparatus comprising: an X-ray generator; an X-ray detector; a housing; and a collimator for defining a range for the passage of X-rays from the X-ray generator; wherein a right-hand screw thread is provided on a first side of the collimator for attachment of the collimator to the X-ray detector and detachment of the collimator from the X-ray detector, a corresponding right-hand screw thread is provided in the X-ray detector for receiving the right-hand screw thread provided on the collimator, and a left-hand screw thread is provided on a second side of the collimator opposite the first side coaxial with the right-hand screw thread for attachment of the collimator to an attachment jig for attachment of the collimator to the X-ray detector and detachment of the collimator from the X-ray detector. 12. An X-ray fluorescence analysis apparatus according to  claim 11 ; wherein the collimator is provided with an indentation or projection for tightening. claim 11 13. An X-ray fluorescence analysis apparatus according to  claim 11 ; wherein the right-hand screw thread of the collimator is an external screw thread and the right-hand screw thread of the X-ray detector is an internal screw thread. claim 11 14. An X-ray fluorescence analysis apparatus according to  claim 11 ; wherein the right-hand screw thread of the collimator is an internal screw thread and the right-hand screw thread of the X-ray detector is an external screw thread. claim 11 15. An X-ray fluorescence analysis apparatus according to  claim 11 ; wherein the attachment jig has a left-hand screw thread for receiving the left-hand screw thread of the collimator for screwing the collimator into the right-hand screw thread of the X-ray detector and unscrewing the collimator from the screw thread of the X-ray detector. claim 11 16. An X-ray apparatus comprising: an X-ray generator for generating X-rays; an X-ray detector for detecting X-rays; a housing attached to at least one of the X-ray generator and the X-ray detector; a collimator for collimating X-rays generated by the X-ray generator; and a first screw thread formed on one of the X-ray generator, the X-ray detector and the housing for receiving the collimator; wherein the collimator has a second screw thread on a first side for mounting the collimator to the first screw thread and a third screw thread on a second side having a threading direction opposite from that of the second screw thread for attachment to a mounting jig. 17. An X-ray apparatus according to  claim 16 ; wherein the first screw thread is a right-hand screw thread, the second screw thread of the collimator is a right-hand screw thread, and the third screw thread of the collimator is a left-hand screw thread. claim 16 18. An X-ray apparatus according to  claim 17 ; wherein the right-hand screw thread of the collimator is an external screw thread and the first screw thread is an internal screw thread. claim 17 19. An X-ray apparatus according to  claim 17 ; wherein the right-hand screw thread of the collimator is an internal screw thread and the first screw thread is an external screw thread. claim 17 20. An X-ray apparatus according to  claim 16 ; wherein the collimator has one of an indentation or a projection for tightening, and the mounting jig has the other one of an indentation or a projection corresponding to the indentation or projection of the collimator. claim 16