| 摘要 |
An automobile sheet metal surface correcting equipment capable of permitting alignment between a piston of the equipment and a portion of the sheet metal surface to be corrected to be carried out from an inside of the sheet metal such as a bonnet, to thereby facilitate sheet metal working. The equipment includes a housing having an air flow path switchably arranged therein, an air introduction structure provided therein with air introduction passages for introducing compressed air into the housing therethrough, an impact wrench mechanism arranged in the housing and actuated by compressed air fed through the air introduction structure into the housing, a screw bolt having rotating force applied thereto from the impact wrench mechanism, and a piston mechanism including a cylinder and a piston movably arranged in the cylinder in a retractable manner in association with rotation of the screw bolt; so that the air flow path in the housing is changed over to retractably move the piston of the piston mechanism, resulting in correcting a metal sheet surface.
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