|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||091/304; 091/461; 060/413|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 2|
A pneumatically operated fastener driving tool capable of reducing a time period from operation timing of a trigger to downward movement of a driver blade for fastener driving, and reducing a time period from the release timing of the trigger to a timing at which respective components are returned to their initial positions for a subsequent nail driving. As components a main valve and a trigger valve is provided. The main valve is movable within a main valve chamber connected to a main valve control channel. The trigger valve selectively provides fluid ...
What is claimed is: 1. A fastener driving tool comprising: a frame defining therein an accumulator that accumulates a compressed air; a cylinder disposed within the frame; a piston reciprocally slidably disposed within the cylinder, a piston upper chamber being defined by an inner peripheral surface of the cylinder and an upper surface of the piston; a main valve which alternately opens and blocks a fluid communication between the piston upper chamber and the accumulator; a main valve chamber section defining therein a main valve chamber in which the m...