A driver has: a strike section moving in a first direction to strike a fastener; and a bumper contacting the strike section and restricting the range of movement of the strike section in the first direction. The driver further has: a support section for supporting the bumper; a connection section connected to the support section and disposed in a direction intersecting the first direction; a drive section supported by the connection section and moving the strike section in a second direction; a first receiving section which, when the strike section moves in the first direction to hit the bumper, receives a load acting on the support section in the first direction; and a second receiving section which, when the strike section moves in the first direction to hit the bumper, receives a load acting on the support section in the circumferential direction about a first centerline of the drive section.

A fastener driver includes a housing having a handle portion. A motor is positioned within the housing. The fastener driver further includes an air compressor including a compressor cylinder and a compressor piston movable within the compressor cylinder in a reciprocating manner to compress air within the compressor cylinder. The fastener driver further includes a drive train converting torque from the motor to a linear force applied to the compressor piston, causing the compressor piston to move in the reciprocating manner. At least a portion of the drive train extends through the handle portion of the housing.

A pneumatic nailer is provided comprising a working piston which is connected to a driving plunger for driving in a fastening means and which is subject to compressed air when a driving-in process is triggered, The nailer also includes a triggering device for initiating a driving-in process, a safety device configured to switch the nailer from a trigger-ready state to a locked state a control valve to control the pressure inside of the control chamber which includes a control valve member which is moveable along an adjustment path and a damper coupled to the control valve member.

A driving mechanism for fastener driving machine, including a rotatable crank; a driving rack element rotatably installed on the crank, which comprises an engaging element, a support element and a driving rack; at least one fixed guide element. The support element and/or engaging element can move along the set trajectory. The present invention has a simple structure, a few parts and stable operation. When the crank rotates, the motion trajectory of the engaging element is straight or approximately O°, so as to reduce the kinetic friction force of load to the maximum extent, preventing wear problem, and guaranteeing constant direction of thrust on the impact unit in the course of compressed energy storage and low eccentric load in late stage, the quick release of driving mechanism is implemented, the operational stability and smoothness of impact unit are guaranteed, the work quality is upgraded.

A fastener driving apparatus featuring at least one gas spring and a drive mechanism, comprising a plurality of lifters, for selectively engaging and disengaging said at least one gas spring to energize the gas spring. The lifters the gas spring to energize the gas spring and thereafter release the gas spring, wherein the gas spring releases a portion of its potential energy and accelerates an anvil to engage a fastener. The lifters may engage the gas spring at the same time for a portion of the operational cycle of the apparatus, and the operational cycle may include an intermediate stopping point, which after resumption of a lifter on the gas spring after the stopping point, a relatively small increase of energy in the gas spring thereafter is required to generate a sufficient energy in the gas spring to effectively drive a fastener.

A driving device includes: a main body; a striking part movably supported by the main body; a handle protruding from the main body; and a nose part attached to the main body and holding a fastener before being hit by the striking part, the nose part movably accommodating the striking part and having an injection path for guiding the fastener and an injection port connecting with the injection path and firing the fastener, an opening extending from the injection port toward the handle being provided on a handle side of the injection path, and a width of the opening being larger than an outer diameter of a head of the fastener in a plan view perpendicular to a linear moving direction of the striking part.

An inventive system comprising a pistol crossbow, a blowgun, a first gas seal operatively associated with said blowgun, and a first pistol crossbow bolt selectively operatively associated with said pistol crossbow and said blowgun, said first pistol crossbow bolt configured to be capable of being selectively operatively interchanged between said pistol crossbow and said blowgun for elastic launching by said pistol crossbow and pneumatic launching by said blowgun. It may further be seen in view of this disclosure that within the scope and the spirit of the inventive disclosure and the claims appended hereunto are inventive system and method examples including, but not limited to, a method of driving a hardware fastener and/or providing a hardware fastener driving system, a system and method for a PPECS stabilizer acceleration interface, and a gas seal comprising a bulkhead and a label configured to be capable of being mounted to said bulkhead.

A fastener driving machine, which comprises an energy storage unit; an impact unit used to drive the energy storage unit to store energy and withstand the energy released by the energy storage unit to drive fasteners into a workpiece; a driving mechanism connected to the impact unit; a rotating power mechanism connected to the driving mechanism to provide rotating power to the driving mechanism. The driving mechanism comprises a stationary annular gear, a crank connected to the rotating power mechanism, and at least one planetary gear which is connected to the crank in a spinning manner and revolves with the rotation of the crank relative to the annular gear, and an engaging shaft eccentrically connected to the planetary gear to push the impact unit. The planetary gear is placed in the annular gear to mesh with the annular gear.

A method of operating a fastener driver comprises initiating a fastener driving operation by moving a driver blade from a retracted position toward a driven position, and detecting that the driver blade has become jammed in an intermediate position between the retracted position and the driven position. The method further includes moving a latch from a locked position, in which a lifter assembly is maintained in an engaged position by the latch for moving the driver blade from the driven position toward the retracted position, to a released position, in which the lifter assembly is movable away from the driver blade. The method further includes driving a motor to rotate a lifter of the lifting assembly, thereby moving the lifter assembly away from the driver blade, then, returning the lifter assembly to the engaged position, and moving the latch from the released position to the locked position.

A pneumatic nail gun includes a gun body, a muzzle connected to the gun body for receiving a nail, a cylinder unit disposed in the gun body, an air valve unit having a cover portion, and a striking unit having a piston. The cylinder unit includes a gas storage chamber, a striking cylinder having a cylinder chamber 510 in fluid communication with the gas storage chamber, and at least one gas storage cylinder in fluid communication with the gas storage chamber for receiving a gas having a pre-determined gas pressure. The cover portion is operable to interrupt fluid communication between the cylinder chamber and the gas storage chamber, and to allow the fluid communication such that the piston is pushed by the gas to strike the nail.