| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressurized shaft drive device for an electric gun by disposing a member constituting the pressurized shaft drive device in a housing constituted of a body whose one side is open and a plate covering the open part so as to assemble simply the pressurized shaft drive device with accuracy, and by making the through hole formed on the front wall of the housing bearingless so as to obtain the electric gun small in the effect of a spatter. SOLUTION: In the pressurized shaft drive device, the cross-sectional shape of the housing 1 is constituted of the approximately U-shaped body 2 and the plate 3 covering the open part, the pressurized shaft drive member constituted of a pressurized shaft 5, with a ball screw mechanism 4 assembled in its rear part, a direct acting rolling bearing 6 fixed to the pressurized shaft, and a rail 7 assembled to the direct acting bearing is disposed in the housing, and the through hole formed on the front wall 15 of the housing is made bearingless.
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