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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||227/051; 227/058; 227/152|
|발명자 / 주소||
|출원인 / 주소||
|대리인 / 주소||
|인용정보||피인용 횟수 : 18 인용 특허 : 5|
A drive system for a fastening tool, in particular a riveting tool, includes a punch for a fastening operation and a clamp axially moveable relative to the punch for clamping the workpieces during the fastening operation. The punch is actuated by a drive so as to be displaced axially. During such operation the drive force exerted upon the punch is transmitted to the clamp by force transmitting means comprising an air pressure chamber of variable volume.
1. A drive system for a fastening tool for fastening one or a plurality of workpieces of ductile material, the fastening tool comprising a punch for performing a fastening operation and a clamp axially displaceable relative to said punch and providing a clamping force for clamping said one or said plurality of workpieces during said fastening operation, the drive system comprising: a drive, a punch member adapted to be axially displaced by said drive for actuating said punch, and a clamp member adapted to be axially displaced by said punch member vi...