Combustion gas cartridge for gas fastening device

Details Combustion gas cartridge for gas fastening device Combustion gas cartridge for gas fastening device

F - Mech Eng,Light,Heat,Weapons

17

C

F17C 1/00 (2006.01)

Patent

CA 2602760

Combustion gas cartridge for a gas internal combustion fastening device, comprising an external casing (2) over which is crimped the edge (6) of an internal cup (5) beyond which an outlet end (8) projects. The external casing (2) is stepped and includes three longitudinal zones having different respective diameters, namely a first edge zone (9), a second bearing zone (10) for the head of a crimping machine having a smaller diameter than that of the edge zone (9) and a third zone (11) having a diameter equal to or greater than that of the edge zone (9) and forming an annular shoulder (12) together with the second bearing zone ( 10) for the crimping head.

L'invention concerne une cartouche de gaz de combustion pour dispositif de fixation à combustion interne, qui comprend un boîtier externe (2) sur lequel est serti le bord (6) d'une cupule interne (5), une extrémité (8) de sortie se déployant au-delà de la cupule. Le boîtier externe (2), à gradins, comprend trois zones longitudinales présentant différents diamètres respectifs, soit: une première zone (9) de bord; une deuxième zone (10) d'appui, destinée à la tête d'une sertisseuse et qui présente un diamètre inférieur à celui de la zone (9) de bord; et une troisième zone (11), dont le diamètre est égal ou supérieur à celui de la zone (9) de bord et qui forme un épaulement (12) annulaire avec la deuxième zone (10) d'appui destinée à la tête de sertissage.

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