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1. WO1989004996 - DISPOSITIF DE SUPPORT POUR CASSETTE DE FILM DE RADIOGRAPHIE AUX RAYONS X OU SIMILAIRE

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Claimε

1. An arrangement in holderε for X-ray caεεetteε (4) or some other kind of receiver of X-ray or like radiation, in which the holder (2) is moveable, preferably in the vertical plane, between two terminal positionε in relation to a frame or εtand part (3 ) , namely a caεεette or receiver changing poεition and an expoεure poεition, and which holder iε provided with casεette centering deviceε or dogε (5 ;6) , characterised in that the frame part (3) haε arranged therein an abutment device (10) which iε effective in engaging the caεεette and urging εaid caεεette (4) againεt the holder (2) subsequent to insertion of the caεsette into the holder in the
casεette-change poεition.

2. An arrangement according to claim 1, characterised in that the abutment device (10) is free from engagement with the casεette (4) in the expoεure
poεition.

3. An arrangement according to claim 2, characterised in that the abutrment device (10) iε located in a corner region of the frame part (3).

4. An arrangement according to any one of claimε 1-3, characterised in that the abutment device (10) is intended to engage the caεεette (4) during part of the movement of the holder (2) towardε and away from the expoεure position.

5 An arrangement according to claim 4, characterised in that the abutment device (10) is carried on one end of a sprung arm (11).

6'. An arrangement according to claim 5, characterised in that the arm (11) can be εwung about an axiε (13) at right angleε to the plane of the caεsette, .against the action of a spring (12).

7. An arrangement according to claim 6 , characterised by stop means (14) for limiting pivotal movement of the arm (11) in one direction.

8. An arrangement according to any one of claims l- 7 , characterised in that the abutment device has a bevelled edge surface (10a) for facilitating insertion of the caεεette (4) into the holder (2) in the caεεette-change poεition.

9. An arrangement according to claim 8 , when dependent on claim 5, 6 and 7 ,characterised in that the abutment device (10) haε an essentially straight abut-ment surface (10b) which iε located opposite the bevelled surface (10a) and which engages the cassette during movement of the holder (2) from the expoεure poεition; and in that the arm (11) iε arranged to swing against the action of the spring (12) until the abutment device (10) snapε outwardε into abutment with the outer flat surface of the caεsette ( 4 ) , said abutment device in its outwardly swung position holding the caεsette pressed against the holder.

10. An arrangement according to claim 9, characterised in that the arm (11) of the abutment device (10) is made of spring steel.