This stapling machine embodies two improvements over prior staplers. It has means to prevent the lower front ends of the side walls of the staple magazine body from spreading apart. It also has means to prevent the lower end of the driven staples from swinging rearwardly, when using short staples, such as are used when stapling insulated electric wires to a base.
The present invention is a fastener driving device for driving brads or staples into a workpiece. The device comprises a main body structure and magazine assembly for receiving a fastener package containing a plurality of fasteners connected together. The fasteners are staples or brads. The main body structure includes a drive track for receiving a lead fastener. A reciprocating driving structure moves through a fastener driving cycle including (1) a drive stroke and (2) a return stroke. The magazine assembly is constructed and arranged such that the lead fastener remains connected to the package until the driving structure engages the lead fastener and separates it during the drive stroke. The magazine assembly includes a movable interior fastener supporting structure and an exterior fastener guiding surface constructed and arranged to support a brad package. The interior fastener supporting structure is constructed and arranged to support a staple package when the device is being used to drive staples. The movable interior fastener supporting structure is configured to apply force in the direction of the exterior fastener guiding surface to provide tightened engagement of the brads in the brad package and thereby prevent undesired movement of the brad package in the driving direction in response to the driving structure engaging the lead brad during the driving stroke.
7395955 - Stapler - Owned by Staples The Office Superstore, LLC (Framingham, MA)
A stapler includes a body and a strike plate movably mounted to the body between a rest position and a loaded position. The strike plate is adapted to drive a staple into a target object. The strike plate may be moved from the rest position to the loaded position by a loading mechanism against the bias of a power spring, whereupon the energy stored in the power spring is applied to the strike plate to drive the staple. A stapler may include a lockout which inhibits movement of the strike plate toward the loaded position unless a work piece is beneath the stapler body.
A stapler includes a body and a strike plate movably mounted to the body between a rest position and a loaded position. The strike plate is adapted to drive a staple into a target object. The strike plate may be moved from the rest position to the loaded position by a loading mechanism against the bias of a power spring, whereupon the energy stored in the power spring is applied to the strike plate to drive the staple. A stapler may include a lockout which inhibits movement of the strike plate toward the loaded position unless a work piece is beneath the stapler body.
