F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
F15B 15/20 (2006.01) F15B 15/26 (2006.01)
Patent
CA 2337266
The invention concerns an actuator (21) comprising a pre-stroke rod (29) which can be fixed to the tool body, for example soldering pliers. Thus by pressurising the pre-stroke chamber (27) the working rod (34) for closing the pliers can be brought into an intermediate small opening position, the working piston (31) and the amplifying pistons (36 and 37) remaining retracted in the actuator. Since the rod (29) can then be locked relative to the actuator body (21), pressurisation of the working chamber (32) and the amplifying chambers (38 and 40) will then cause the working rod to be extracted (34) and the soldering pliers to be closed without any recoil from the actuator body.
Le vérin (21) comporte une tige de précourse (29) qui peut être rendue fixe par rapport au corps de l'outil, par exemple une pince de soudage. Une mise en pression de la chambre de précourse (27) peut ainsi amener la tige de travail (34), propre à actionner la fermeture de la pince, dans une position intermédiaire de petite ouverture, le piston de travail (31) et les pistons amplificateurs (36 et 37) restant en retrait dans le vérin. La tige (29) pouvant alors être verrouillée par rapport au corps du vérin (21), la mise en pression de la chambre de travail (32) et des chambres amplificatrices (38 et 40) provoquera alors l'extraction de la tige de travail (34) et la fermeture de la pince de soudage sans recul du corps du vérin.
Boyer Jean Noel
Chevassu Daniel
Tiberghien Olivier
Aro
Goudreau Gage Dubuc
LandOfFree
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