A fastening tool includes: a bit holding portion which detachably holds a driver bit and is configured to rotate in a circumferential direction of the driver bit and move in an axial direction of the driver bit; a motor configured to perform at least one of rotation of the bit holding portion and movement of the bit holding portion along the axial direction; and a control unit configured to control a position of the bit holding portion along the axial direction by a rotation amount of the motor. The control unit is configured to stop rotation of the motor based on a load applied to the motor rotated in one direction of moving the bit holding portion in a direction approaching a fastening target.

In order to provide an electric tool with good operability that can extend the life of and suppress breakage of a switching element for controlling energization of a brushless motor, a control unit (50), after an operation switch (5) is turned off, does not immediately turn off an inverter circuit (43) (does not set the duty of a PWM signal to 0), and instead normally operates the inverter circuit (43) with a low-duty PWM signal and waits until a rotation speed of a brushless motor (6) reaches a predetermined rotation speed or less to turn off the inverter circuit (43) (to set the duty of the PWM signal to 0).

A magazine is configured to be removably coupled to a power tool housing of a power tool. The magazine has a housing configured to be rotatably attachable to the power tool housing. An advancing mechanism is received in the magazine housing, and is configured to advance a strip of collated fasteners into position to be driven by the power tool. An indexing ring has a plurality of recesses and is configured to be non-rotatably attached to the power tool housing. A detent is biased to removably engage one of the plurality of recesses, and is configured to be non-rotatably attached to the magazine housing. The detent removably engages the recesses to allow for indexed tool-free rotation of the magazine housing relative to the power tool housing.

The present invention provides a successive screw fastener which enhances a screw fastening function and improves operability and rapidness of each element.

A successive screw fastener 1 according to the present invention has: a grip unit 2 including a trigger switch 16 with a direction lever 17 which sets a direction of forward rotation or reverse rotation of a rotary drive section 22 which rotationally drives a bit B; a screw fastener main body unit 3 including a gap adjustment mechanism section 91 which assuredly guides a screw S to a fastening acting position, a screw feed mechanism section 61 which avoids interference of the screw S and the bit B, a screw guide position adjustment mechanism section 101 which can simply adjust a gap between the fastening acting position and a fastening target position, and a magazine mounting mechanism section 111 having rigidity; a magazine unit 4 which can be easily attached to or detached from the screw fastener main body unit 3; and a handle unit 5 having excellent operability of an operator.

A fastener installation tool and related method are provided for installing fasteners in boards. The tool can include a feed mechanism that automatically and sequentially feeds collated fasteners to a nose assembly. The nose assembly can include a guide having an alignment projection extending downwardly from the guide, and configured to engage a board corner and/or side surface, so as to align an angled bore through which fasteners are guided with the board corner and or side surface. The nose assembly can include a magnetic element located adjacent a path on which the collated fasteners are advanced. The magnetic element can exert a magnetic force on an individual fastener, aligning it for precise entry into the angled bore. The nose assembly can include a guide pocket to positively constrain a fastener as it rotates to ensure a desired advancement trajectory. A related method of installation is provided.

A feed apparatus for feeding fasteners to a fastener installation head includes a chute to support and guide a strip of fasteners from a chute inlet to the fastener installation head. The strip of fasteners includes a plurality of fasteners selectably releasably attached to a carrier ribbon, wherein the feed apparatus is to separate the fasteners from the carrier ribbon and present the fasteners to the fastener installation head for installation. An idler wheel is to peel the carrier ribbon from the fasteners as the fasteners pass through the chute. A tensioner is to advance the carrier ribbon and apply tension to the carrier ribbon to advance the fasteners in the chute. An actuator is to urge the tensioner to advance the carrier ribbon.

An installation tool and related methods are provided. The tool can pull a strip of collated fasteners along a collated fastener path to a guide, where individual fasteners are sequentially separated from the strip and advanced into a workpiece. The tool can include a tension feeder located downstream of the guide. The tension feeder is configured to apply tension to the strip between the guide and a leading end of the strip. The tool can include a driveshaft configured to attach to a conventional drive tool chuck or a drive tool having hexagonal type drive components. The guide can be one piece and replaceable, with a guide body and a guide head. A strip slot can be defined in the same to align a fastener head with a backstop and facilitate entry of a fastener shank in a feed slot. Related methods of use are provided.

A fastener assembly includes an elongated fastener body with a head end part. A propelling member supported on the fastener body, wherein the propelling member has a lengthened shape, wherein a portion of the lengthened shape extends around the head end part of the fastener body. A method of propelling the fastener assembly is also provided.

Disclosed is a device for supplying bolts having an improved bolt supply mechanism so as to enhance work speed and productivity as well as to prevent various interferences and troubles caused by driving a robot. The device for supplying bolts comprises a rotary magazine that indexes a plurality of bolts; and a nut runner having a driving bit that picks up a bolt in the rotary magazine one by one and performs a driving operation, wherein the rotary magazine has a turret that houses a plurality of bolts in a circumferential direction and positions a bolt in the nut runner by rotation.

An installation tool and related methods are provided. The tool can pull a strip of collated fasteners along a collated fastener path to a guide, where individual fasteners are sequentially separated from the strip and advanced into a workpiece. The tool can include a tension feeder located downstream of the guide. The tension feeder is configured to apply tension to the strip between the guide and a leading end of the strip. The tool can include a driveshaft configured to attach to a conventional drive tool chuck or a drive tool having hexagonal type drive components. The guide can be one piece and replaceable, with a guide body and a guide head. A strip slot can be defined in the same to align a fastener head with a backstop and facilitate entry of a fastener shank in a feed slot. Related methods of use are provided.