Automobile sheet metal surface correcting equipment
US6679092B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2002 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Jan 25, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/705
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.