A device for indicating the tensioning of a fastening...

F - Mech Eng,Light,Heat,Weapons – 16 – B

Patent

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Details

F16B 43/00 (2006.01) F16B 31/02 (2006.01) F16B 39/24 (2006.01)

Patent

CA 2717413

The invention concerns a device for indicating the tensioning of a fastening member, such as a screw or the like, said device comprising a first portion (11) with a first fastening member receiving aperture (15); a second portion (12) with a second fastening member receiving aperture in alignment with said first fastening member receiving aperture, and a joining portion (13) connecting said first and second sheet portions allowing the first and second portions are biased towards each other by the head of the fastening member in response to the tightening of said fastening member, wherein the device is provided with irreversible indicator (21) means for indicating that the tension in the elongated fastener during the mounting process has been exposed to a tension exceeded a predetermined tension value, and wherein said irreversible indicator means comprises that said first portion is provided with a distal end portion adapted for sliding and locking engagement with corresponding indicator means provided on the second portion, and that said locking engagement indicates the occurrence of the relative displacement between the first and second portions have exceeded a predetermined value.

L'invention concerne un dispositif permettant d'indiquer le tensionnement dun élément de fixation, comme une vis ou similaire, ledit dispositif comprenant une première partie (11) avec une première ouverture de réception (15) délément de fixation; une seconde partie (12) avec une seconde ouverture de réception délément de fixation dans l'alignement de ladite première ouverture de réception délément de fixation, et une partie de jonction (13) connectant ladite première et ladite seconde parties feuilles permettant de polariser les première et seconde parties lune vers lautre par la tête de lélément de fixation en réaction au serrage dudit élément de fixation, le dispositif étant pourvu dun moyen indicateur irréversible (21) permettant d'indiquer que le système de fixation allongé pendant le processus de montage a été soumis à une tension dépassant une valeur de tension prédéterminée, et ledit moyen indicateur irréversible prévoyant que ladite première partie soit dotée dune partie dextrémité distale conçue pour coulisser et sengager par verrouillage avec le moyen indicateur correspondant disposé sur la seconde partie, et que ledit engagement par verrouillage indique que le déplacement relatif entre la première et la seconde partie est allé au-delà dune valeur prédéterminée.

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