A fastening tool having a nail stop which positions a nail for driving and is made at least in part of a contact material which can be investment cast and/or hardened. The contact material can resist wear from the action of driving the nail and the movement of a driver blade. The nail stop can be configured to align nails fed from a magazine and can be offset from the longitudinal centerline of the fastening tool. The nail stop can have a head contact length which is 0.5% to 95% of the length of the nail to be driven. The nail stop is used in methods for positioning a nail for driving.

Tool-free adjustment members in a fastener driving tool. The fastener driving tool can be used to seal closed containers such as, for example, corrugated fiberboard cartons, by applying staples to the folded flaps or other closure parts to secure them in place. The tool-free adjustment members provide customizable drive settings for a variety of different sized staples and different workpiece conditions.

A fastener cartridge assembly includes a plurality of fasteners and a layer configured to be captured by the fasteners. In addition, the layer includes a tissue contacting surface which includes a plurality of cleats, and/or any other suitable structures, configured to reduce slippage between the layer and the patient tissue. In various embodiments, the layer can include traction features extending therefrom.

A stapler includes a base, a handle pivotably connected to the base, and a magazine unit having a channel body which is pivotably attached to the base, a magazine body which is coaxially disposed to and movable relative to the channel body in a lengthwise direction, and a magazine ejection spring disposed to bias the magazine track to make an ejection movement. The magazine unit further has a damping module disposed on the magazine track and having two spring-biased damping members which are movable relative to the magazine track to be slidably moved on and frictionally engaged with inner wall surfaces of two outer lateral wails of the channel body so as to retard the ejection movement of the magazine track.

An accessory for a fastening gun includes a magazine assembly with a feed end and a discharge end and configured to support a series of staples in a pre-discharge orientation and with a feed mechanism for feeding the staples from the feed end to the discharge end. A drive member guide assembly is mounted on the magazine assembly and is configured so that a staple drive member can be mounted in the drive member guide assembly and can be driven and retracted along a predetermined path with respect to the magazine assembly, so that, when driven, the drive member can engage a staple to drive legs of the staple into respective components, the drive member guide assembly being configured for mounting on the fastening gun with the drive member connected to a piston or the like of the fastening gun.

An accessory for a fastening gun includes a magazine assembly with a feed end and a discharge end and configured to support a series of staples in a pre-discharge orientation and with a feed mechanism for feeding the staples from the feed end to the discharge end. A drive member guide assembly is mounted on the magazine assembly and is configured so that a staple drive member can be mounted in the drive member guide assembly and can be driven and retracted along a predetermined path with respect to the magazine assembly, so that, when driven, the drive member can engage a staple to drive legs of the staple into respective components, the drive member guide assembly being configured for mounting on the fastening gun with the drive member connected to a piston or the like of the fastening gun.

A composite staple magazine for tackers includes a guide member, a receiving body, a support member, a push member, a resilient member and an end member. The receiving body is fixed to the guide member. The support member is made of plastic material and snapped to the receiving body. The support member includes two respective positioning portions which are engaged with the engaging portion of the receiving body. The resilient member is wrapped to the roller of the support member and connected to the push member which is slidably mounted to the receiving body. The resilient member pushes the staples forward. The end member is fixed by a bolt. The composite staple magazine is simple, easily assembled and saves cost.

A fastener magazine of a fastening device may include a track defining an elongated channel with a dispensing end at which fasteners are dispensed from the magazine. A runner positioned in the track may include a release member that projects outward from an outer surface of the runner. A pusher may be positioned in the track and coupled to the runner such that the pusher exerts a force in a direction toward the dispensing end of the track on the fasteners when the runner is in a closed position. A retention member that is attached to a side wall of the track can engage the pusher through an aperture in the track to prevent the pusher from contacting the fasteners until the runner has reached a desired position in the track. The release member can contact the retention member to disengage the retention member from the pusher.

In a continuous screw tightening machine with washer stacking supply mechanism, in conjunction with retreating of a tightening machine, a washer is placed on a seat surface portion of a washer feeding body of a washer sequential supply mechanism and reliably supplied to a tightening possible position one by one and the one screw is supplied by a screw sequential supply mechanism between the washer and a bit so as to be in concentric arrangement, in conjunction with advancing of the tightening machine, the washer sequential supply mechanism is set to a feeding preparation attitude of the subsequent washer, and the screw sequential supply mechanism is constituted to be set to a feeding preparation attitude of the subsequent screw, and the screw is tightened and fixed together with the washer at the tightening target spot by rotation/driving of the bit advanced to the tightening possible position by a driving machine.

A replaceable positioning tip can be removably fixedly coupled to a distal end of the trip arm. The positioning tip can define a tip nail guide groove having a proximal portion extending at a first angle substantially parallel to a nail driver axis and a distal end tapering at a second angle. The tapered distal end can be encompassed by a thin-walled portion. A nail tip lifter can be coupled to the rear nail guide housing for pivotable movement between a first position adjacent the positioning tip and a second position away from the positioning tip. The nail tip lifter can define a lifter nail guide groove extending from its inception at a proximal end to a distal end. A biasing member can be positioned between the rear nail guide housing and the nail tip lifter to bias the nail tip lifter toward the first position.