Patent ID: 6896167
Filing Date: 2005-05-24
Classification: B27F

Abstract:
1. A driver unit, comprising: a movable frame attached movably upwardly and downwardly to a fixed frame; a magazine attached to the movable frame for moving upwardly and downwardly together with the movable frame; a cartridge which is attached attachably and detachably on the magazine and which contains sheet staples and which has a drive-out part for driving-out each of the sheet staples at a leading end thereof; a driver which is attached in a front of the magazine and which is moved upwardly and downwardly relative to the magazine and which is mounted pivotally through an elongated hole of the movable frame on the fixed frame; and a biasing member for biasing the magazine in one of up and down directions and the driver relative to the magazine in the other of the up and down directions, said driver being entered relatively into said drive-out part by movement of the movable frame relative to the fixed frame against a biased force of the biasing member in accordance with movement of a moving means of a clincher unit toward the magazine in order to drive-out the staple, when the moving means of the clincher unit is moved apart away from the magazine, the movable frame and magazine being moved by the biasing member to be returned to an initial position, wherein said magazine is mounted pivotally on the movable frame at a position apart from the drive-out part than the mounted position of the driver to be rotatable the magazine about its pivot relative to the movable frame.