Abstract: A driving tool in a form of a combustion type nail driving machine 1 for injecting a nail by combustion gas is provided. The driving tool includes a lower pusher which is arranged at a distal end in a projecting direction of a nose through which the nail passes, formed with an elongated hole, and adapted to come into contact with a wood, an upper pusher which is urged by the lower pusher, and an extending-contracting mechanism interposed between the lower pusher and the upper pusher. The extending-contracting mechanism includes a bush which is in contact with the upper pusher and formed with a threaded hole, and a screwing part which can be screwed into the threaded hole after passing through the elongated hole. The screwing part includes a bolt which connects the lower pusher and the bush, and a lever.

Abstract: When a movable sleeve 11 on a cylinder moves upward, a combustion chamber 5 in a sealed state is formed. Mixed gas is explosively burnt within the combustion chamber 5 so as to drive a fastener out. A lock cylinder 22 is disposed beneath the movable sleeve 11. A lock piston 23 is housed within the lock cylinder 22 so as to be movable in an up/down direction. The upper end of the lock piston 23 is capable of being engaged with a holding member 12 which is interlocked with the movable sleeve 11. The lower portion of the lock cylinder is coupled to the combustion chamber via a gas tube 24. The gas tube 24 is provided with a check valve 25. The lock cylinder 22 is provided with an electromagnetic valve 27. The electromagnetic valve 27 opens upon the lapse of a predetermined time period after the combustion within the combustion chamber.

Abstract: A nailing depth adjustable device for a nail gun includes: a barrel-extending part mounted slidably on a barrel; an interconnecting part extending from the barrel-extending part and defining a driving surface; a support; and a telescopic adjusting unit mounted movably on the support and including a first part and a second part that is coupled movably to the interconnecting part, that defines a driven surface, and that engages threadedly the first part so as to be rotatable relative to the first part and the interconnecting part and therefore to be movable relative to the first part and the interconnecting part, thereby permitting adjustment of the distance between the driving and driven surfaces.

Abstract: A fastening tool can include a housing and a motor assembly in the housing. The motor assembly can include an output member and a motor for translating the output member. A knob can be rotatably mounted in the housing around a first axis and define a plurality of locating formations arranged thereon. An adjustment rod can be operatively coupled for movement with the knob. A lower contact trip can be coupled to the adjustment rod. An indexing member can be movable along a second axis parallel to the first axis. The indexing member can be selectively biased into engagement with one of the locating formations upon rotation of the knob to resist rotation of the knob relative to the housing. Rotation of the knob can cause the contact trip to translate toward and away from the housing to define a desired penetration depth for the fastener.

Abstract: A nail gun includes a housing having a first locking element, an opposite second locking element, and a sliding groove, a safety mechanism including an actuation member in the sliding groove, the actuation member having an end nose, and a nail alignment adjustment mechanism including a lever pivotably secured to the housing, a spring having a first end secured to the other end of the lever and a second end affixed to the actuation member, and a spring-biased selector including a shank passing the lever, and a knob secured to the shank. Pivoting the knob from a first position to a second position will cause the nose to contact a first workpiece. Pivoting the knob from the second position to the first position will cause the nose to dispose above a second workpiece and align a nail with a through hole of the second workpiece.

Abstract: A nail gun includes a housing defining a group of receiving grooves and a safety rod. The control valve includes a body and a valve stem slidably received in the body. The body is movably mounted in the receiving grooves and one end of the valve stem is arranged to sustain the safety rod at a predetermined height. The predetermined height can be adjusted by moving the body relative to the receiving grooves.

Abstract: An apparatus having a single, elongated flexible rail with a plurality of attachment devices connected to the rail and spaced at intervals therealong for releasably affixing the rail to a surface of a work piece by vacuum. The rail bends and twists as needed to substantially follow the surface of the work piece. An X-axis carriage is coupled to the rail and adapted to traverse the rail along an X-axis, wherein the X-axis is parallel to a length of the rail. A Y-axis carriage is coupled to the X-axis and adapted to traverse the X-axis carriage along a Y-axis, wherein the Y-axis is perpendicular to the X-axis. A fastening device clamps the X-axis carriage to the Y-axis carriage. A laser associated with the X-axis carriage facilitates precise locating of a drill carried by the apparatus relative to a spot where a hole is to be drilled.

Abstract: A tool assembly with a driving tool and a holder assembly. The driving tool has a housing, a motor, an output member and a transmission for rotatably coupling the output member to the motor. The motor and the transmission are housed in the housing. The holder assembly has a leg, which is telescopically coupled to the housing, a fastener guide and an adjustment mechanism. The fastener guide includes a longitudinally extending groove that is configured to support a threaded fastener and a cam that is disposed transverse to the groove. The adjustment mechanism couples the fastener guide to the leg on a side of the leg opposite the housing. The adjustment mechanism is configured to vary a distance between the groove and a rotational axis of the output member.

Abstract: An external adaptor for a palm nailer is disclosed. The adaptor acts as a spacer and allows controlling the depth of the nail pounded into siding or tiles. The adaptor is fitted onto a stationary extension sleeve that protrudes from the nailer and is clamped onto it using at least two threaded fasteners. A method for attaching and setting up the adaptor is also disclosed. The adaptor is moved up or down the stationary sleeve and the location that provides the optimum nail depth is established by trial and error.

Abstract: A safety structure of a nail gun includes a trigger set including a trigger and a plate. The trigger is pivoted on a main frame to be moved toward a trigger device. The plate is pivoted on the trigger between the trigger and the trigger device. A linkage is pivoted on the main frame to press a free end of the plate. A spring urges the linkage to move back the linkage when the linkage is moved away from the trigger. A tappet is pivoted on the main frame to be moved by the linkage. An arm is on the muzzle for reciprocation, which has an extending portion extending to a front of the trigger. A cover is pivoted on the extending portion of the arm and covers the tappet and the linkage. The linkage leans on the cover so that the cover is moved by the linkage.

Abstract: A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

Abstract: An adjustable depth of drive apparatus is provided for use on a fastener driving tool including a nosepiece defining a fastener passageway, and a driver blade reciprocating in the passageway for driving fasteners sequentially fed from a magazine into a workpiece. The depth of drive apparatus includes a depth of drive adjustment element being reciprocally movable relative to an end of the nosepiece, the depth of drive adjustment element defining a nosepiece chamber dimensioned for receiving the nosepiece and including a driver blade stop configured for receiving an end of the driver blade to terminate vertical driving motion of the driver blade.

Abstract: An idle driving operation preventing device (40) includes an engaging member (45) disposed on a pusher (31). The engaging member (45) can engage a stopper member (47) coupled to an operation member (5a), so that the movement of the operation member (5a) for driving the fastener (n) can be inhibited. The engaging member (45) is biased by a biasing force that is smaller than a biasing force applied to the pusher (31).

Abstract: A fastener driving tool capable of driving a fastener in a direction orthogonal to a surface of a workpiece. A fastener driving operation is performed upon manipulation of a trigger and pressing a push lever against a surface of the workpiece. The push lever is slidably movable along a nose, and is biased by a spring in a fastener driving direction. The spring is positioned offset from a center of a fastener driving tool. The push lever is slidable in a sliding axis inclined by an angle ?? relative to the center of the fastener driving tool. The push lever is configured to provide an angle defined between the sliding axis and the surface of the workpiece in a range of more than 90 degrees, i.e., 90 degrees plus ??.

Abstract: A contact safety and trigger mechanism for use with a pneumatic fastener in order to permit efficient pneumatic fastener actuation mode selection. A rotating rod is included in a contact safety assembly which is constructed to slide toward/away from a driver housing, defining a piston for securing a fastener disposed within the piston's path of travel. The rotating rod includes a first shoulder or ledge and a second shoulder which is off-set from the first shoulder. The rod may be rotated in order to orientate the selected shoulder, to function as a stop for a pivoting trigger assembly, which is constructed to contact a pneumatic valve, to initiate a fastening event in-which a fastener is driven into a workpiece.

Abstract: An adjustable depth of drive apparatus is provided for use on a fastener driving tool including a nosepiece defining a fastener passageway, and a driver blade reciprocating in the passageway for driving fasteners sequentially fed from a magazine into a workpiece. The depth of drive apparatus includes a workpiece contact element being reciprocally movable relative to an end of the nosepiece, the workpiece contact element defining a nosepiece chamber dimensioned for receiving the nosepiece and including a driver blade stop configured for receiving an end of the driver blade to terminate vertical driving motion of the driver blade.

Abstract: A wrenching portion provided in an adjuster and employed for assembling is formed at a gripping portion for rotation. The gripping portion is formed in a polygonal shape. In this configuration, the adjuster is decreased in size and weight and its operability of adjusting a driving depth is improved. An undercut portion is removed in a vertical direction and a non-slip rugged portion is provided in only a longitudinal direction so that it can be manufactured in a simple tow-part mold, thereby reducing the production cost.

Abstract: A fastening tool can include a housing and a motor assembly in the housing. The motor assembly can include an output member and a motor for translating the output member. A knob can be rotatably coupled to the housing and include a first surface. An adjustment element can have a second surface and a threaded aperture. The second surface can be engaged to the first surface such that rotation of the knob effects corresponding rotation of the adjustment element. An adjustment rod can be threadably received into the threaded aperture. A lower contact trip can be coupled to the adjustment rod. A locating formation can be coupled to one of the housing and the knob. An indexing member can be coupled to the other of the housing and the knob. The indexing member can engage the locating formation to resist rotation of the knob relative to the housing.

Abstract: The present invention refers to a dry firing prevention device, especially for use in a nail gun with a drawer type magazine, in which the main body of the nail gun is equipped with a safety apparatus and a dry firing prevention device near a trigger. The dry firing prevention device is disposed on the magazine. When a nail pusher pushes nails until where last few nails are left, the nail pusher will contact with one end of the dry firing prevention device and the other end of the dry firing prevention device blocks the safety apparatus, so that the safety apparatus retains in a safety status to prevent the nail gun from dry firing, so as to prolong the lifetime of the nail gun.

Abstract: A fastening tool can include a housing and a motor assembly in the housing. The motor assembly can include an output member and a motor for translating the output member. A knob can be rotatably mounted in the housing around a first axis and define a plurality of locating formations arranged thereon. An adjustment rod can be operatively coupled for movement with the knob. A lower contact trip can be coupled to the adjustment rod. An indexing member can be movable along a second axis parallel to the first axis. The indexing member can be selectively biased into engagement with one of the locating formations upon rotation of the knob to resist rotation of the knob relative to the housing. Rotation of the knob can cause the contact trip to translate toward and away from the housing to define a desired penetration depth for the fastener.

Abstract: An adjustable depth of drive assembly for use with a fastener driving tool includes a workpiece contact element having a contact end and an adjustment end, a rotatable adjustment member configured for being securable to the tool and being displaceable between an adjusting position in which the workpiece contact element is movable relative to the tool and a locked position wherein the adjustment end is non-movable relative to the tool, and at least one locking detent being reciprocally engaged and disengaged from at least one locating hole by manually overcoming a spring bias to displace the rotatable member from said locked position to said adjustment position for securing said adjustment end in a selected locked position relative to said housing without the use of tools.

Abstract: An adjustable depth-of-drive mechanism for a fastener driving tool having a housing structure defining an axis, and a nosepiece extending generally axially from the housing structure, includes a lower work contact element having a sleeve for reciprocatingly receiving the nosepiece, an upper work contact element attached at a first end to the housing structure, a rotatable thumbwheel assembly having a first portion engageable with the lower work contact element, a thumbwheel assembly accessible by a user and a second portion having at least one detent assembly, and a retaining mechanism for retaining the thumbwheel assembly relative to the upper work contact element where the second portion is received by a second end of the upper work contact element, where during thumbwheel rotation relative to the first portion in either direction, the position of the lower work contact element is moved relative to the nosepiece.

Abstract: The nailing depth control structure for a palm nailer is mounted at the hammering head of the palm nailer. The control structure includes a control block with several steps, a cylinder base, a flexible pipe fitted internally with an anchoring position, a resilient component and a rotary location component. When the user employs the present invention, it is possible to drive the synchronous rotation of flexible pipe and change the position of anchoring position of flexible pipe in relation to steps of control block, thereby adjusting retracted distance of flexible pipe for easy control of nailing depth. By using scale markers placed externally at the cylinder base, it is feasible to identify the current nailing depth of palm nailer, and relieve the need of removing structural components with improved efficiency and ease-of-operation.

Abstract: A nailing machine includes a switch operating member 40 for setting to switch respective modes of single striking and continuous striking, and pivot restricting mechanism for restricting a contact lever 34 for operating a valve stem 19 of a start valve 15 from being pivoted in cooperation with the switch operating member 40 set to switch to the single striking mode. By the pivot restricting mechanism, an amount of pivoting the contact lever 34 at a position of operating to draw a middle of a trigger lever 31 in the single striking mode is restricted, and a valve stem 19 is maintained to maintain a state of operating to make the start valve 15 ON. Therefore, a reaction of the nailing machine in the continuous striking is reduced, further, dribble in the single striking mode is prevented from being brought about. In addition thereto, an erroneous operation in connecting an air chuck is prevented.

Abstract: An adjustable depth control device for a fastener driving tool has an attachment member which is used to couple the adjustable depth control device to the fastener driving tool. An adjustment member is coupled to the attachment member to adjust and control a driving depth of the fastener driving tool. A stopping head is formed on a rivet die of the fastener driving tool for keeping the rivet die in a chamber of the fastener driving tool and for limiting a distance the rivet die will travel.

Abstract: A setting tool for driving a fastening element in a constructional component includes a housing (11), a drive member (13) displaceable in a guide (12) located in the housing, a bolt guide (15) adjoining the drive member guide (12) in direction of the operational axis (A) and forming a dog point (16) for abutting the constructional component and a drive-in depth setting tool (20) for displacing the bolt guide (15) axially relative to the drive member guide (15) for setting a distance between a drive end (14) of the drive member (13) and the dog point (16) in the initial position of the drive member.

Abstract: A contact trip assembly for a power nailer, wherein a contact member includes a curved portion that loops rearwardly towards a handle of the nailer. Also provided is an adjustment assembly including an adjustment plate and a pinion gear, a trigger that is slidably engageable within a housing of the tool, a trigger lock including a ring element, an anti-discharge mechanism including a stop member, and a contact trip lock.

Abstract: A nail gun switch mechanism has a trigger valve bar received in a trigger of the nail gun; a trigger lever pivotally disposed on the trigger; a safety slidable bar pivotally disposed on a gun body; a longitudinal guiding hole formed at a peripheral side of the gun body; a shaft slidably received in the guiding hole; a switch bar arranged on the shaft, which the switch bar can bring the shaft to rotate in the longitudinally guiding hole; and a hitting base of the safety slidable bar extending out from an hitting mouth formed at a bottom portion of the gun body. The shaft has a bias pole disposed at a top portion thereof, which the bias pole can synchronously rotate with the shaft and can be reposited by the adjusting of the switch bar. The trigger lever has a shorter end portion; a longer end portion; and an opening.

Abstract: A fastener-driving tool has a trigger control mechanism that comprises a vertically oriented selectable mode pushrod that is adapted to be rotated to either one of two predetermined positions or states. When the vertically oriented selectable mode pushrod is disposed at a first one of its angular positions or states, the fastener-driving tool is permitted to operate in accordance with a sequential firing mode of operation, whereas when the vertically oriented selectable mode pushrod is disposed at a second one of its angular positions or states, the fastener-driving tool is permitted to operate in accordance with a bump firing mode of operation.

Abstract: A combustion type power tool providing enhanced workability and improved material yieldability. A combustion chamber frame is slidably movably disposed in a housing. A push lever is slidably movably supported to a nose extending from a lower end portion of the housing, and is abuttable on a workpiece. The combustion chamber frame and the push lever are associated with each other by a connection unit including arm sections and a connector section. A compression coil spring for biasing the push lever downwardly is interposed between the connector section and a cylinder disposed in the housing. The housing covers the entire arm sections, the connector section and the spring, so that these components are not directly accessible from an outside.

Abstract: The nailing machine with safety mechanism is located between fastener and nailing part of nailing machine. The safety mechanism includes an adjustable shelf, which shifts recurrently within a limited range. The first end of adjustable shelf is linked to the fastener, and second end extends towards nailing part. One side of retainer is normally protruded from exterior of nailing part, and the other side extends towards adjustable shelf. The revolving controller is provided with a pin joint and a revolving end. The revolving end will limit and fix simultaneously adjustable shelf and retainer, or, in the case of second swinging angle, the revolving end will release adjustable shelf and retainer. When an idle nailing machine is firstly withheld by a fastener, the adjustable shelf will shift outwards, and then drive revolving end of revolving controller to separate from the adjustable shelf.

Abstract: A contact safety and trigger mechanism for use with a pneumatic fastener in order to permit efficient pneumatic fastener actuation mode selection. A rotating rod is included in a contact safety assembly which is constructed to slide toward/away from a driver housing, defining a piston for securing a fastener disposed within the piston's path of travel. The rotating rod includes a first shoulder or ledge and a second shoulder which is off-set from the first shoulder. The rod may be rotated in order to orientate the selected shoulder, to function as a stop for a pivoting trigger assembly, which is constructed to contact a pneumatic valve, to initiate a fastening event in-which a fastener is driven into a workpiece.

Abstract: A stapler is provided for stapling decorative staples into a sheet media, where the decorative staples have an indicia platform and a plurality of prongs. The stapler includes a base and a cartridge assembly pivotably mounted to the base. The cartridge assembly has a magazine for storing the decorative staples. A stapler head is provided with a ram configured to press downwardly on the indicia platform of the decorative staple, pushing the decorative staple out of the magazine such that the prongs enter a top side of a sheet media and deformed against the base on a bottom side of the sheet media. The ram is provided with ridges that extend below a table portion of the ram such that the ridges are disposed substantially directly above the prongs on the decorative staples.

Abstract: An adjusting device for a power nailer includes a connection member connected to the barrel of the nailer and the trigger and an adjusting bolt are respectively connected thereto. The adjusting bolt is threadedly connected to the connection member and an end of the adjusting bolt is connected to a movable member which is connected to an end of a link of a safety device. A retaining member such as a torsion spring is connected between the movable member and the link. By rotating the adjusting bolt, the link is adjusted a distance to the nose of the nailer. The retaining member allows different types of the links and the movable members to be connected each other.

Abstract: A novel work contact or no-mar tip for mounting to a drive probe of a fastening tool having a driver blade for driving a fastener into a workpiece is provided having a pair of wings having resilient contact surfaces for contacting the workpiece, the wings forming a channel for the fastener while allowing for visually locating the position where the fastener will be driven into the workpiece.

Abstract: A driver guide for use with a fastener-driving tool has a first guide member mounted to the tool body of the fastener-driving tool. A mount device is coupled to the first guide member and serves to mount a second guide member to the first guide member. A fastener guide channel is defined between the first guide member and the second guide member. The mount device is operable in at least three different modes including a first, second, and third mode, while the mount device remains coupled to the first guide member. In the first mode, the second guide member can be fixed in position relative to the first guide member. In the second mode, the second guide member is movable relative to the first guide member within a limited range. In the third mode, the second guide member can be removed from the first guide member.

Abstract: A nail gun and depth control spacer assembly for ejecting nails into a substrate which contains two or more layers of roofing materials one of which is a compressible fibrous layer. The nails penetrate the substrate but are prevented by the depth control spacer from permanently compressing the compressible fibrous layer which springs back to is original thickness after completion of the nailing process. The depth control spacer, attached to the base of the nail gun, is of semi-oval configuration having a pressure sensitive layer and a solid layer, is provided with an oval cavity in its center portion through which the nails are ejected into the substrate.

Abstract: An adjustable depth of drive assembly for use with a fastener-driving tool includes a workpiece contact element having a contact end and an adjustment end, at least one stop configured for being secured to the tool and being normally moveable between an adjusting position in which the workpiece contact element is movable relative to the tool, and a locked position where the adjustment end is secured from movement relative to the tool, and at least one biasing element associated with the stop and configured for urging the stop and the adjustment end into a selected locked position relative to the tool without the use of tools.

Abstract: A punching-depth adjusting device for use with a nailing gun is adapted to cooperate with the conventional connecting device and has a scale sleeve (16), a sleeve (14), and a resilient C-ring (12). The scale sleeve (16) has an outer periphery and multiple cutouts (162) partially defined around the outer periphery. The sleeve (14) movably sleeves around the scale sleeve (16) and has a through hole (144) defined through the sleeve (14). The resilient C-ring (12) clips on the sleeve (14) and selectively engages with the scale sleeve (16) via the through hole (144). Thereby, the sleeve (14) is enabled to be located at different axial positions to arrange for a predetermined length of a nail to protrude from a workpiece.

Abstract: An adjustable depth of drive device for use on a fastener driving tool. The adjustable depth of drive device includes a thumb post which is mounted to, and extends from a work piece contact element of the tool. Also included is a thumb wheel which is removably attached to the thumb post. A spring member is another part of the adjustable depth of drive device, and it is engagable with the thumb wheel in at least two positions. In a first position, the spring member is frictionally engaged with the thumb wheel to prevent unwanted movement of the thumb wheel relative to the thumb post, and this first position allows for fine adjustments of the position of the work piece contact element. In a second position, the spring member is disengaged from the thumb wheel to permit free rotation of the thumb wheel on the thumb post, which allows for gross adjustments of the position of the work piece contact element.

Abstract: An adjustable depth of drive assembly for use with a fastener driving tool includes a workpiece contact element having a contact end and an adjustment end, a cage stop securable to the tool and being movable between an adjusting position in which the workpiece contact element is movable relative to the tool and a locked position wherein the adjustment end is secured to the tool, and a locking device associated with the cage stop and reciprocable between a locked position and an adjustment position for securing the cage stop and the adjustment end in a selected locked position relative to the tool without the use of tools. It is preferred that the adjustment end of the workpiece contact element has at least one toothed edge, and the cage stop has at least one toothed surface for engaging the at least one toothed edge in the locked position.

Abstract: A pneumatic nail gun has a body, a nail magazine, an actuating device, a trigger assembly and a push bar assembly. The body has a housing, a handle and a nail firing device. The actuating device is mounted between the housing and the handle. The actuating device has a channel, a piston rod, an O-ring and a first spring to provide a restitute force to the piston rod. The trigger assembly is attached to the body and has an inner cap pivotally attached to the body, an outer cap slidably attached outside the inner cap, an actuating lever pivotally attached inside the inner cap and a second spring. Accordingly, the outer cap can be moved to a lock position to keep the nails from being fired unintentionally, and the pneumatic nail gun is safe in use.

Abstract: A centering punch includes a first body, a second body, a punching head, an elastic body, an elastic member, a push member, and a spring. Thus, the tapered portion of the punching head is moved along the tapered face of the first body, and the punching head is moved radially in the receiving chamber of the first body by guidance of the tapered face of the first body, so that the push portion of the push member is in alignment with the control hole of the punching head easily and exactly.

Abstract: A framing point driver system for efficiently driving various framing points into a picture frame. The framing point driver system includes a lever unit, a turret member with a plurality of receiver apertures rotatably attached to the lever unit, a shaft member extending from the lever unit, and an engaging arm lockably positioned about the shaft member. The user rotates the turret member so that the desired size receiver aperture is facing toward the engaging arm. A framing point is inserted into the selected receiver aperture for insertion into the picture frame.

Abstract: A fastening tool with a housing, a nosepiece that is coupled to the housing and a contact trip that includes a lower contact trip, an upper contact trip and a depth adjustment assembly. The lower contact trip is mounted on the nosepiece for translation between an extended position and a retracted position. The upper contact trip is separate from the lower contact trip. The depth adjustment assembly includes a stem, a sleeve that is threadably coupled to the stem, and a knob. The knob is rotatably coupled to the sleeve but axially movable thereon. The stem is coupled to one of the lower contact trip and the upper contact trip and the sleeve is captured by the other one of the lower contact trip and the upper contact trip.

Abstract: A depth control device includes a linkage connected to and movable with a contact element of a driving tool. A cam follower is connected to the linkage so as to be movable together therewith between first and second longitudinal positions relative to a cam when the contact element is disposed at anon-actuated position. The cam is connected to a driving member which is operable to drive the cam to move in a transverse direction relative to a longitudinal direction, and engages slidingly the cam follower so as to permit movement of the cam follower between first and second longitudinal positions.

Abstract: A fastener installation tool that is configured to feed fasteners from a magazine assembly into a housing where one of the fasteners is aligned to a reciprocating tool bit. The fastener installation tool is configured to set the fastener into a workpiece such that the head of the fastener is spaced apart from the surface of the workpiece by a predetermined amount. A method for coupling a first workpiece to a second workpiece is also provided.

Abstract: A nail beating depth adjuster of a nail driver comprises a limiting cover, a first and a second spring, and a nut. The limiting cover is extended with a first seat and a second seat which are coaxial. A linkage passes through the holes in the first seat and second seat. A first spring encloses the linkage between the first seat and second seat. A nut encloses an outer thread of the linkage between the first seat and second seat. The first spring resists against the nut. The nut is formed with a plurality of buckling recesses which are spaced with an equal space. One of the end surfaces of first seat and second seat is formed with at least one tooth. Thereby, by the first spring pressing against the nut, the buckling recesses on the nut expands upon or engages with the tooth for adjusting and positioning.

Abstract: Fastening tool for driving a fastener such as a staple into a substrate a predetermined distance. The tool includes a housing and a driver reciprocally mounted in the housing and moveable with respect to the housing, the driver having a driving surface for engaging a fastener such as a staple. A magazine assembly is associated with the housing for positioning and aligning the fastener in the path of the driver so that when actuated, the driver strikes the fastener and forcibly ejects it from the magazine into the substrate to a predetermined extent so as to adjust or control the holding power of the fastener about the object.

Abstract: A fastener driving tool includes a housing assembly with a nosepiece assembly defining a drive track. A safety trip assembly includes a trigger enabling portion and a workpiece engaging portion and is movable between an extended disabling position and a retracted enabling position. The safety trip assembly is biased toward the extended position and is moved toward the retracted position by engagement between a workpiece and the workpiece engaging member. The workpiece engaging portion is movable to permit adjustment of a length of the safety trip assembly. The workpiece engaging portion may be removed from the safety trip assembly and exchanged with another different workpiece engaging portion. A workpiece engaging portion usable with the fastener driving tool includes a positioning mechanism having an opening locating structure and a guiding structure.