Driving tool

B - Operations – Transporting – 25 – C

Patent

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Details

B25C 1/04 (2006.01)

Patent

CA 2615512

A driving tool wherein an impact cylinder (6) is disposed in a body (1). A main air chamber (7) reserving compressed air is disposed on the outside of the impact cylinder (6). A cylinder cap (8) covering the impact cylinder (6) and the main air chamber (7) is fixed to the upper part of the body (1). The lower part of a tubular head valve (13) with a same outer diameter at the upper and lower parts which opens and closes the main air chamber (7) and the impact cylinder (6) is disposed on the outside of the impact cylinder (6). A tubular inner wall (10) and a tubular outer wall (11) are formed integrally with the lower surface of the cylinder cap (8). A piston stop (12) defining the top dead center of an impact piston (5) is formed on the inside of the tubular inner wall (10). A head valve (13) is slidably installed between the tubular inner wall (10) and the tubular outer wall (11).

L~invention concerne un outil d~entraînement dans lequel un cylindre d~impact (6) est disposé dans un corps (1). Une chambre à air principale (7) stockant de l~air comprimé est disposée à l~extérieur du cylindre d~impact (6). Un capuchon de cylindre (8) recouvrant le cylindre d~impact (6) et la chambre à air principale (7) est fixé à la partie supérieure du corps (1). La partie inférieure d~une valve à tête tubulaire (13) avec un même diamètre externe au niveau des parties supérieure et inférieure qui ouvre et referme la chambre à air principale (7) et le cylindre d~impact (6) est disposée à l~extérieur du cylindre d~impact (6). Une paroi interne tubulaire (10) et une paroi externe tubulaire (11) sont formées de manière intégrale avec la surface inférieure du capuchon de cylindre (8). Une butée de piston (12) définissant le point de centrage supérieur d~un piston d~impact (5) est formée à l~intérieur de la paroi interne tubulaire (10). Une valve de tête (13) est montée coulissante entre la paroi interne tubulaire (10) et la paroi externe tubulaire (11).

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