Installation tool for installing swage type threaded fasteners

Details Installation tool for installing swage type threaded fasteners Installation tool for installing swage type threaded fasteners

B - Operations, Transporting

25

B

B25B 31/00 (2006.01)

Patent

CA 2422270

A fastener system for multi-piece swage type fasteners, including a pin (12) and a collar (14), and providing a stump type fastener (10) constructed to be set as a pull type fastener with the fastener pin (12) having a threaded gripping portion (34) and including a compact installation tool (44) having a swage anvil (50) and a rotary threaded member (46) adapted to be threaded onto the threaded pull portion (34) of the pin (12) whereby a relative axial force is applied between the pin (12) and the collar (14) via the rotary threaded member (46) and swage anvil (50) to cause the anvil (50) to radially overengage the collar (14) to swage it into locking grooves (32) on the pin (12) and the pull portion (34) remaining on the pin (12) after installation and with the swage anvil (50) being connected to a piston rod (104) of a piston (80) for axially reciprocating movement for swaging the collar (14) with the rotary threaded member (46) being axially fixed and with the swage anvil (50) and rotary threaded member (46) being offset from the remainder of the tool (44) whereby the tool (44) can be used to install such fastener (10) in application of limited clearance.

La présente invention concerne un système d'attache destiné à des attaches de type sertissage multipièce comprenant un axe (12) et un orifice (14), qui forment une attache (10) de type bouton fabriquée de façon à être fixée sous forme d'attache du type à tirer. L'axe (12) d'attache possède une partie emprise filetée (34) et comprend un outil (44) compact qui possède un support (50) de sertissage et un élément (46) rotatif fileté adapté pour être vissé sur la partie (34) traction filetée de cet axe (12). Une force axiale relative est appliquée entre cet axe (12) et l'orifice (14) via l'élément (46) fileté rotatif et le support (50) de sertissage de façon que ce support (50) s'emboîte par dessus l'orifice (14) et le sertisse dans des rainures verrouillantes (32) placées sur l'axe (12), et la partie traction (34) reste sur l'axe (12) après installation. Le support de sertissage (50) est connecté à une tige (104) de piston (80) permettant un mouvement de va et vient destiné à sertir l'orifice (14) avec l'élément (46) fileté rotatif fixé axialement. Le support de sertissage (50) et l'élément fileté rotatif (46) sont décalés du reste de l'outil (44) et cet outil (44) peut être utilisé pour installer cette attache (10) avec un dégagement limité.

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