초록 ▼

A portable electric nailing gun operating from a power supply. The motor accelerates a flywheel which at the appropriate energy state is coupled through a mechanism to an anvil acting directly on the nail. The actuation is governed by a control circuit and initiated from a trigger switch. The motor

A portable electric nailing gun operating from a power supply. The motor accelerates a flywheel which at the appropriate energy state is coupled through a mechanism to an anvil acting directly on the nail. The actuation is governed by a control circuit and initiated from a trigger switch. The motor accelerates a flywheel that is then clutched to the output anvil causing the nail to be driven. The position of the output anvil is sensed and once the nail is driven, the motor is dynamically braked reducing the excess energy in the flywheel. This method uses a highly responsive motor and power supply which enables the motor to come up to speed, drive the nail and return to a low energy condition in less than 2 seconds. The electrical control circuit and brake allow precise control and improve safety. The power supply is preferably a rechargeable low impedance battery.

대표청구항 ▼

A portable electric nailing gun operating from a power supply. The motor accelerates a flywheel which at the appropriate energy state is coupled through a mechanism to an anvil acting directly on the nail. The actuation is governed by a control circuit and initiated from a trigger switch. The motor

A portable electric nailing gun operating from a power supply. The motor accelerates a flywheel which at the appropriate energy state is coupled through a mechanism to an anvil acting directly on the nail. The actuation is governed by a control circuit and initiated from a trigger switch. The motor accelerates a flywheel that is then clutched to the output anvil causing the nail to be driven. The position of the output anvil is sensed and once the nail is driven, the motor is dynamically braked reducing the excess energy in the flywheel. This method uses a highly responsive motor and power supply which enables the motor to come up to speed, drive the nail and return to a low energy condition in less than 2 seconds. The electrical control circuit and brake allow precise control and improve safety. The power supply is preferably a rechargeable low impedance battery. or attaching said container and said base together. 4. An attachment system according to claim 3 wherein said elongated portion of said base comprises an internally unthreaded tubular portion dimensioned to receive said connecting member and guide said connecting member into said unthreaded tubular portion. 5. An attachment system according to claim 1 wherein one of said elongated member and said elongated portion fits inside the other of said member and portion, said elongated member and said elongated portion being configured and dimensioned for said member and portion to force fit together to attach said container and said base together. 6. An attachment system according to claim 1 wherein said elongated member and said elongated portion engage each other at engaging surfaces of said member and portion, and further including adhesive on said engaging surfaces for connecting said elongated member and said elongated portion to attach said container and said base together. 7. An attachment system according to claim 1 wherein said elongated member is made from thermoplastic, and wherein said base has a hole for receiving said elongated member, the end of said elongated member being heat deformable to form a cap larger than said hole to attach said containing and screw base together. 8. An attachment system according to claim 1 wherein said elongated portion including a bore, and said system further includes a connecting member for extending through said base for connecting engagement with said elongated member; and wherein said floor portion of said base has an inner face facing said bottom portion of said container and an outer face, and said base is countersunk on said outer face around said bore. 9. An attachment system, according to claim 1 wherein said floor portion of said base has an inner face adjacent said bottom portion of said container and an outside face, and walls extending from said inner face for contacting said elongated member of said container. 10. An attachment system according to claim 1 wherein said floor portion of said base has an inner face facing said bottom portion of said container, an outer face, and a wall extending from said outer face having a distal surface for engaging ground, and wherein said elongated portion extends from said outer face. 11. An attachment system according to claim 10 wherein said inner face is countersunk opposite said elongated member of said base for receiving at least a portion of said elongated member. 12. An attachment system according to claim 11 wherein said inner face of said base has a peripheral lip for engaging said container to stabilize said container on said base. 750591, 19880600, Coste et al., 187/391; US-4898263, 19900200, Manske et al., 187/247; US-4930604, 19900600, Schienda et al., 187/393; US-5557546, 19960900, Fukai et al., 702/185; US-6330936, 20011200, Lence Barreiro et al., 187/393; US-6439350, 20020800, Lence Barreiro et al., 187/391; US-6484125, 20021100, Huang et al., 702/183; US-20030000777, 20030100, Lence Barreiro et al., 187/391