B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
B25B 27/00 (2006.01) B25B 21/02 (2006.01)
Patent
CA 2294322
The invention concerns a pyrotechnical unscrewing-screwing device consisting essentially of a mass-hammer (6) launched at high speed on an anvil (10), whereof the lever arm is connected to the element to be unscrewed, unlocked, screwed or locked. The reaction is provided by an inertial compensating mass (15) containing the expansion chamber (7) acting as launch tube for the hammer (6). Said compensating mass (15) which is freely rotating is braked and brought back in its initial position by a spring (38). The operating speed of the hammer (6) is provided by the gases of a micro-generator of pyrotechnical gas (2) mounted on a re-chargeable cylinder (16).
La dévisseuse-visseuse pyrotechnique est un dispositif constitué essentiellement d'une masse-marteau (6) lancée à grande vitesse sur une enclume (10), dont le bras de levier est relié à l'élément à dévisser, débloquer, visser ou bloquer. La réaction est assurée par une contre-masse inertielle (15) contenant le corps de chambre de détente (7) servant de tube de lancement au marteau (6). Cette contre-masse (15) qui est libre en rotation est freinée et ramenée en position initiale par un ressort (38). La mise en vitesse du marteau (6) est assurée par les gaz d'un micro-générateur de gaz pyrotechnique (2) monté dans un barillet rechargeable (16).
Castagner Bernard
Waitzenegger Claude
Compytec Technologies
Gowling Lafleur Henderson Llp
S.e.i.b. Sarl
LandOfFree
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